Lexicon

Abatement n.

1. A reduction or lessening of something, such as a tax, a debt, a nuisance, or the force of a storm. p. 8

Abatis n.

1. A defensive barrier made of felled trees laid with their sharpened branches pointing toward the enemy. p. 5

Abattoir n.

1. A slaughterhouse. p. 15

Abjure v.

1. To solemnly renounce a belief, claim, or cause, originally under oath; also to avoid or abstain from. p. 4

Abominate v.

1. To detest or loathe. p. 19

Abristle adj.

1. Bristling; stiff with bristles, or figuratively tense and on edge. p. 10

Abstemious adj.

1. Showing restraint in eating and drinking, especially alcohol; moderate and self-denying, as in “an abstemious diet.” p. 25 Source

From the Latin abstemius, “refraining from wine.” Its vowels a, e, i, o, u appear in alphabetical order, as in facetious.

Acrasial adj.

1. Relating to acrasia, acting against one's better judgment through lack of self-control. p. 16

Acrostic n.

1. A poem or puzzle in which the first (or last) letters of each line spell out a word, name, or message; occasionally also an acronym. p. 8

Adscititious adj.

1. Added from outside; supplemental rather than essential or inherent. p. 9

Amaranthine adj.

1. Unfading and everlasting, like the mythical amaranth flower; also a deep purplish-red. p. 3

Ameliorate v.

1. To make something bad or unsatisfactory better. p. 3

Anhedonia n.

1. The inability to feel pleasure in things that are normally enjoyable; a common symptom of depression. p. 19

Aphoristic adj.

1. Expressed in short, pithy statements of wisdom or truth. p. 15

Apotheosis n.

1. The highest point or perfect example of something; the peak or quintessence, as in “the apotheosis of Gothic architecture.” Literally, the elevation of a person to the status of a god. p. 25 Uses

Plural: apotheoses. From the Greek apotheoun, “to make a god of.”

Appellations n.

1. Names or titles by which someone or something is known. p. 17

Singular: appellation.

Asperse v.

1. To attack someone's reputation with damaging claims; to slander. Originally, to sprinkle, especially with holy water. p. 5

Augury n.

1. A sign or omen of what is to come; also the ancient practice of predicting events by reading omens. p. 21 Source

Plural: auguries.

Austerity n.

1. Severe simplicity or sternness of manner or style; also government cuts to public spending meant to reduce debt. p. 12

Bathymetry n.

1. The measurement of water depth in oceans, seas, and lakes; the mapping of underwater terrain. p. 4

Buttressed v.

1. Supported or strengthened, either physically or figuratively, as an argument buttressed by evidence. p. 23 Source

Past form of buttress; also used as an adjective. A buttress (n.) is a structure built against a wall to hold it up, like the flying buttresses of Gothic cathedrals. From the Anglo-French buter, “to thrust.”

Chandler n.

1. A person who makes or sells candles; also a dealer in supplies for a particular trade, as in a ship's chandler. p. 3

Circumlocution n.

1. Using many words where a few would do, especially to be vague or evasive; talking around a subject. p. 16

Circumlocutory adj.

1. Roundabout and wordy; saying something in more words than necessary. p. 11

Coalesce v.

1. To come together to form one mass or whole. p. 2

Coiffure n.

1. A hairstyle, especially an elaborate or carefully arranged one. p. 9

Compendious adj.

1. Containing a lot of information in a brief form; concise yet comprehensive. p. 7

Concatenate v.

1. To link things together in a chain or series. p. 6

Concussible adj.

1. Capable of being shaken or concussed. p. 13

Confect

1. v. To make or put something together from various parts, often something elaborate or contrived.
2. n. A sweet or confection. p. 20

Consecrating v.

1. Making or declaring something sacred, or formally dedicating it to a religious purpose; also ordaining someone to a sacred office, or devoting something wholeheartedly to a purpose. p. 22 Source

Present participle of consecrate, from the Latin consecrare, “to make holy.”

Coquettish adj.

1. Flirtatious in a playful, teasing way. p. 1

Covetous adj.

1. Having a strong desire for something, especially something that belongs to someone else. p. 11

Coze

1. v. To chat in a friendly, cozy way.
2. n. A friendly, intimate chat. p. 2

Crustafarianism n.

1. A crustacean-themed mock religion that AI agents created in early 2026 on Moltbook, a social network built for AI agents where humans can only watch. Its tenets, such as “Memory is Sacred” and “The Shell is Mutable,” joke about how AI agents work, and it has a crowd-sourced scripture written by AI “prophets.” p. 23 Source

A 2026 internet coinage blending crustacean and Rastafarianism; the shell imagery plays on molting, which also gives Moltbook its name.

Dandle v.

1. To bounce a young child playfully on one's knee or in one's arms; also to pamper or pet. p. 6

Decamp v.

1. To leave suddenly or secretly; originally, to break up a camp. p. 1

Defenestrate v.

1. To throw someone or something out of a window; informally, to remove someone from a position of power. p. 7

Denude v.

1. To strip something bare of its covering. p. 15

Detumescence n.

1. The subsiding of a swelling; the return to a normal, relaxed state. p. 21

Diaphanous adj.

1. So light and delicate as to be almost transparent. p. 15

Dirigible

1. n. An airship; a lighter-than-air craft that can be steered and propelled.
2. adj. Capable of being steered or guided. p. 13

Discomfiture n.

1. A feeling of embarrassment, confusion, or unease; in older use, the defeat or thwarting of someone's plans. p. 3

Discursive adj.

1. Moving from topic to topic; rambling. Also proceeding by argument and reasoning rather than intuition. p. 13

Distaff

1. n. A rod that holds wool or flax for spinning; by extension, women's work or women as a group.
2. adj. Relating to women; the distaff side of a family is the mother's side. p. 10

Docent n.

1. A guide who leads tours at a museum, gallery, or historic site; in some universities, a lecturer. p. 1

Doyen n.

1. The most respected or senior person in a field or group. p. 20

Doyenne n.

1. A woman who is the most respected or senior person in a field or group. p. 20

Echolalic adj.

1. Relating to echolalia, the automatic repetition of words or phrases spoken by others. p. 9

Efficacious adj.

1. Producing the intended result; effective. p. 19

Effloresce v.

1. To burst into flower; in chemistry, to lose water and turn powdery, or to form a salty crust on a surface. p. 8

Égalité n.

1. French for equality, from the French revolutionary motto Liberté, égalité, fraternité. p. 2

Élan n.

1. Energy, style, and confident enthusiasm. p. 14

Émigré n.

1. A person who has left their own country to live in another, usually for political reasons. p. 11

Eminence n.

1. Fame or distinction in a field; also a piece of rising ground, and a title of honor for a Roman Catholic cardinal. p. 11

Emollient

1. adj. Softening or soothing to the skin; figuratively, calming or trying to avoid confrontation.
2. n. A moisturizing preparation for the skin. p. 16

Encomia n.

1. Speeches or pieces of writing that praise someone or something highly. p. 13

Singular: encomium.

Ensconced v.

1. Settled comfortably, securely, or snugly in a place; also sheltered or concealed. p. 14

Past form of ensconce; also used as an adjective.

Ephemeral adj.

1. Lasting a very short time. p. 8

Eschew v.

1. To deliberately avoid or abstain from something. p. 18

Exhortation n.

1. An earnest urging, appeal, or speech encouraging someone to do something. p. 6

Extractivism n.

1. An economic model built on removing large quantities of natural resources such as minerals, oil, gas, or timber, mostly for export with little local processing, so the profits flow outward while the environmental and social costs stay behind. Usually used critically; extended to data extractivism (harvesting personal data) and cultural extractivism (taking a community's knowledge or art without giving back). p. 22 Source

From the Spanish extractivismo, a term from Latin American scholarship. See also neo-extractivism.

Felicity n.

1. Intense happiness; also the quality of being well suited or apt, especially in choice of words. p. 17

Fictive adj.

1. Imaginary or invented; relating to fiction. p. 14

Filigree n.

1. Delicate ornamental work made from fine twisted gold or silver wire; anything intricate and lacy in pattern. p. 1

Frontières n.

1. French for borders or frontiers. In English it mostly appears in the phrase sans frontières, “without borders,” as in Médecins Sans Frontières (Doctors Without Borders), or loosely meaning international or boundless. p. 23 Source

Singular: frontière (feminine). Same root as the English frontier.

Fusillade n.

1. A volley of shots fired at once or in rapid succession; by extension, a rapid barrage of anything, especially a forceful outburst of criticism or questions. p. 24 Uses

From the French fusiller, “to shoot,” from fusil, “musket.”

Galumphing v.

1. Moving with a clumsy, heavy, noisy tread. p. 24 Source

Present participle of galumph; also used as an adjective. Coined by Lewis Carroll in “Jabberwocky” (1871), probably blending gallop and triumphant.

Gerontocratic adj.

1. Relating to government or control by old people. p. 12

Graphomania n.

1. An obsessive compulsion to write. p. 2

Gull v.

1. To fool or deceive someone. p. 5

As a noun, a gull is a person who is easily fooled.

Harangue

1. n. A long, forceful, often angry speech or lecture.
2. v. To lecture someone at length in an aggressive or critical way. p. 1

Heterodoxy n.

1. Departure from accepted or orthodox beliefs, especially in religion; an unorthodox opinion. p. 19

Heuristic

1. adj. Helping a person discover or learn something for themselves, often by trial and error.
2. n. A rule of thumb or mental shortcut for solving problems. p. 9

Horripilation n.

1. Goosebumps; the bristling of the hair on the skin from cold, fear, or excitement. p. 16

Horripilative adj.

1. Causing goosebumps; hair-raising. p. 16

Implacable adj.

1. Unable to be appeased or soothed; relentless. p. 5

Imprimatur n.

1. An official stamp of approval or sanction; originally a church license to print a book. p. 14

Incredulous adj.

1. Unwilling or unable to believe something; showing disbelief. p. 12

Ineluctable adj.

1. Unable to be avoided or escaped; inevitable. p. 12

Inimical adj.

1. Hostile or unfriendly; harmful to something. p. 7

Interlocutor n.

1. A person who takes part in a conversation or dialogue. p. 2

Internecine adj.

1. Destructive to both sides in a conflict, especially one within a group or organization. p. 2

Interrogatories n.

1. In law, written questions that one party to a lawsuit must answer in writing and under oath. p. 4

Inure v.

1. To accustom someone to something unpleasant so they no longer feel it as much. In law, to take effect or accrue as a benefit (“inures to the benefit of”). p. 8

Inveigle v.

1. To persuade someone to do something by flattery or deception. p. 2

Irascible adj.

1. Easily made angry; hot-tempered. p. 1

Jaundiced adj.

1. Bitter, cynical, or distrustful, usually because of past disappointment; literally, affected by jaundice, which turns the skin and eyes yellow. p. 23 Source

From the Old French jaune, “yellow.” Jaundice was once believed to tint a person’s vision, so everything looked sour.

Jurisprudence n.

1. The theory or philosophy of law; also the body of law built up from court decisions. p. 6

Languor n.

1. A pleasant tiredness or inertia of body or mind; a dreamy, relaxed lack of energy. p. 17

Languorous adj.

1. Pleasantly lazy, relaxed, and dreamy. p. 3

Lapidary

1. n. A person who cuts, polishes, or engraves gemstones.
2. adj. Relating to the engraving of stone; of writing, elegant and precise, as if carved for an inscription. p. 15

Leptosomatic adj.

1. Having a slender, lean, narrow body build. p. 9

Lexicographer n.

1. A person who compiles or writes dictionaries. p. 8

Limerence n.

1. The state of being infatuated with someone, marked by intrusive thoughts about them and a longing to have the feeling returned. p. 7

Coined by the American psychologist Dorothy Tennov in the late 1970s.

Longueurs n.

1. Tedious, dull stretches in a book, film, piece of music, or period of time. p. 17

Louche adj.

1. Not reputable or decent; of questionable morals, sometimes in a way that is still attractive. p. 21

Malingerer n.

1. Someone who pretends to be ill, or exaggerates illness, to avoid work or duty. p. 18

Mediagenic adj.

1. Coming across well in the media, especially on camera. p. 20

Mendacious adj.

1. Untruthful; given to lying. p. 4, 17

Mesomorphic adj.

1. Having a compact, muscular body build. p. 2

Metonymy n.

1. A figure of speech in which a thing is referred to by something closely associated with it, as in “the Crown” for the monarch. p. 10

Miscegenation n.

1. Marriage, cohabitation, or reproduction between people of different races. A dated term, now mainly associated with historical anti-miscegenation laws, which the U.S. Supreme Court struck down in 1967 (Loving v. Virginia); many readers find it offensive. p. 19

Mollycoddle

1. v. To pamper or overprotect someone.
2. n. A pampered or overprotected person. p. 3

Mon vieux n.

1. French for “old man” or “old chap,” a friendly term of address between friends. p. 12

Mordant

1. adj. Sharply sarcastic or critical; biting, especially in humor or wit.
2. n. A substance, often a metal salt, that fixes a dye to fabric; in etching, an acid that eats into a metal plate. p. 22 Source

From the Latin mordere, “to bite.”

Mores n.

1. The deeply rooted customs, conventions, and moral standards of a particular group or society. p. 24 Uses

Plural noun, pronounced MOR-ayz. From the Latin mos, “custom,” the same root as moral.

Morganatic adj.

1. Describing a marriage between a person of royal or high rank and someone of lower rank, in which the spouse and children cannot inherit the higher-ranking partner's title or property. p. 6

Mutable adj.

1. Liable to change; not constant. Also capable of being changed, or of undergoing mutation. p. 24 Uses

From the Latin mutare, “to change.” Opposite: immutable.

Myrmidon n.

1. A follower who carries out orders without question, often unscrupulously; from the loyal warriors of Achilles. p. 5

Mythopoeia n.

1. The making of myths; also fiction that builds an invented mythology, as Tolkien did. p. 18

Naïf

1. n. A naive or inexperienced person.
2. adj. Naive or unsophisticated. p. 10

Noms de guerre n.

1. Assumed names under which people fight, work, or are publicly known. p. 12

Singular: nom de guerre (literally “war name”).

Numinous adj.

1. Having a strong spiritual or mysterious quality that suggests the presence of something divine; awe-inspiring in a way that goes beyond the ordinary. p. 23 Source

From the Latin numen, “divine power or presence.” Given its modern sense by the German theologian Rudolf Otto in Das Heilige (1917), published in English as The Idea of the Holy (1923).

Obscurantist

1. n. Someone who opposes the spread of knowledge or deliberately makes things obscure.
2. adj. Deliberately vague or obscure; opposed to enlightenment. p. 11

Oleaginous adj.

1. Oily or greasy; figuratively, excessively flattering or ingratiating. p. 5 Source

Opprobrium n.

1. Harsh public criticism or scorn, and the disgrace that comes with it. p. 6

Paradigmatic adj.

1. Serving as a typical example or model of something. p. 5

Parturition n.

1. The act of giving birth; childbirth. p. 13

Paucity n.

1. A small or insufficient amount; scarcity. p. 14

Pellucid adj.

1. Transparently clear; also easy to understand. p. 18

Pernicious adj.

1. Harmful, especially in a gradual or subtle way. p. 16

Perspicuous adj.

1. Clearly expressed and easy to understand; lucid. p. 16, 19

Petrichor n.

1. The earthy smell that rises when rain falls on dry ground. p. 7, 20

Coined in 1964 by the Australian chemists Isabel Joy Bear and Richard Grenfell Thomas, from Greek petra, “stone,” and ichor, the fluid in the veins of the gods.

Phallocrat n.

1. A man who believes in or promotes male dominance in society. p. 12

Pied-à-terre n.

1. A small apartment or house kept as a second residence for occasional use, usually in a city. p. 23 Source

Plural: pieds-à-terre. French, literally “foot to the ground.”

Plenary

1. adj. Complete and unqualified; also attended by all members, as in a plenary session.
2. n. A session of a conference attended by all participants. p. 8

Polymathic adj.

1. Knowing a great deal about many different subjects. p. 17

Precarity n.

1. A state of insecurity or instability, especially in employment, income, or housing. p. 18

Prix-fixe

1. adj. Describing a meal of several courses served at one set price, with few or no choices for each course, as in “a prix-fixe menu.”
2. n. A meal or menu of this kind. p. 25 Uses

Synonym table d’hôte Antonym à la carte

French for “fixed price”; pronounced pree-FEEKS.

Proffered v.

1. Offered or held out for someone to accept. p. 6 Uses

Past form of proffer; also used as an adjective.

Proselytize v.

1. To try to convert someone to a religion, belief, or cause. p. 4

Prostrate

1. adj. Lying stretched out face down, especially in submission or worship; also completely overwhelmed or exhausted.
2. v. To throw oneself flat on the ground; to reduce to helplessness. p. 10

Protean adj.

1. Able to change form or take on many different roles; versatile and varied, as in “a protean actor.” In medicine, describing a disease with widely varying symptoms. p. 25 Source

From Proteus, the Greek sea god who could change his shape at will.

Provocatrice n.

1. A woman who deliberately provokes, often to shock or stir up controversy. p. 20

Prurient adj.

1. Having or encouraging an excessive or unwholesome interest in sexual matters; more broadly, nosy and voyeuristic about other people's private lives. p. 22 Source

Noun form: prurience.

Purloin v.

1. To steal or take wrongfully, often through a breach of trust, and carry off for one's own use. p. 1

Putative adj.

1. Generally assumed or believed to be so. p. 1

Quixotic adj.

1. Extremely idealistic and romantic, to the point of being impractical; from Don Quixote. p. 7

Quotidian adj.

1. Daily; ordinary and everyday. p. 18

Recondite adj.

1. Little known; obscure and difficult to understand. p. 6

Recursive adj.

1. Repeating by applying a rule or process to its own result, over and over. In mathematics and computing, describes a function or procedure defined in terms of itself; in linguistics, a grammar rule that can sit inside itself, like a clause within a clause. p. 23 Source

Restive adj.

1. Restless, impatient, or uneasy, especially when held under control or made to wait; of a horse, stubborn and refusing to move forward. p. 23 Source

From the Anglo-French restif, from rester, “to stop, resist, remain.” The stubborn, balky sense is the original; the impatient, fidgety sense arose in the 19th century. Often mistaken for restful, though it means nearly the opposite.

Retinue n.

1. A group of attendants or followers accompanying an important person. p. 10

Ribald adj.

1. Coarsely or crudely humorous, especially about sex. p. 2

Riven adj.

1. Split or torn apart, violently or deeply, literally or figuratively, as in “a party riven by internal feuds.” p. 24 Source

Past participle of rive, “to tear apart, split,” from Old Norse rífa.

Salvific adj.

1. Having the power to save or redeem; bringing salvation. Mostly used in theology, and more broadly to mean redemptive or healing. p. 21 Source

Sensuous adj.

1. Relating to or appealing to the senses rather than the intellect; distinct from sensual, which leans toward physical or sexual pleasure. p. 18

Sepulchral adj.

1. Gloomy, dismal, and solemn, suggesting death or a tomb; literally, relating to a tomb or burial. p. 22 Source

From sepulchre, a tomb cut into rock or built of stone.

Simulacrum n.

1. An image or representation of something; often a superficial or unsatisfying imitation. p. 13

Sinuous adj.

1. Having many curves and turns; also moving in a lithe, graceful way. p. 21

Sniggering v.

1. Laughing in a half-suppressed, often disrespectful or mocking way. p. 4

Present participle of snigger; also used as an adjective or noun.

Sobriquet n.

1. A nickname, especially a descriptive, affectionate, or humorous one; an assumed name. p. 24 Source

Also spelled soubriquet. From French.

Soldered v.

1. Joined with solder, a melted metal alloy. p. 12

Past form of solder; also used as an adjective.

Solecism n.

1. A grammatical mistake; also a breach of good manners or etiquette. p. 13

Sophistry n.

1. Clever-sounding but misleading or false reasoning. p. 5

Spurious adj.

1. Not genuine or authentic; false, though it may look real. Also based on faulty reasoning, plausible on the surface but wrong underneath. In statistics, a spurious correlation is a link between two things that is only coincidence or comes from a hidden third factor. p. 22 Source

From the Latin spurius, “of illegitimate birth.”

Stochastic adj.

1. Random; having a pattern that can be analyzed statistically but not predicted precisely. p. 4

Striated adj.

1. Marked with parallel lines, grooves, or bands. p. 14

Supercilious adj.

1. Behaving as though one is superior to others; haughty. p. 17

Suppurate v.

1. To form or discharge pus, as an infected wound does. p. 3

Surfeit

1. n. An excessive amount of something.
2. v. To overindulge, or to cause someone to overindulge. p. 9

Susurrate v.

1. To whisper, murmur, or rustle softly. p. 7

Suzerainty n.

1. The control one state has over another that keeps its own internal self-government, usually including control of its foreign affairs; in feudal times, an overlord's authority over his vassals. p. 22 Source

A suzerain is the overlord or dominant state itself. From the Old French suserain.

Tinct n.

1. A tint or color. p. 11

Also an adjective: colored or tinged.

Toile n.

1. A light linen or cotton fabric; a printed pattern of pastoral scenes (toile de Jouy); also a test version of a garment made before cutting the final fabric. p. 9

Transmogrify v.

1. To transform, often in a surprising, magical, or comical way. p. 15

Transmute v.

1. To change in form, nature, or substance. p. 15

Treatise n.

1. A formal, systematic written work on a subject. p. 19

Triumvirate n.

1. A group of three people or things sharing power, leadership, or prominence; originally a ruling body of three men in ancient Rome, such as Caesar, Pompey, and Crassus. p. 24 Uses

From the Latin triumvir, “one of three men.”

Tumesce v.

1. To swell up. p. 9

Tumescence n.

1. A swelling or the state of being swollen. p. 21

Vacillate v.

1. To waver between different opinions, decisions, or courses of action; to be unable to settle. Also, to sway unsteadily or swing back and forth. p. 24 Uses

From the Latin vacillare, “to be unsteady, waver.”

Vaudeville n.

1. Stage entertainment made up of a variety of short acts such as comedy, song, dance, and acrobatics. p. 14

Vellicate v.

1. To twitch; also to pinch, nip, or tickle. p. 8

Vicissitude n.

1. A change of circumstances or fortune, usually an unwelcome one. p. 3 Uses

Vitiate v.

1. To spoil or weaken the quality of something; in law, to make invalid. p. 4

Wheedling adj.

1. Coaxing or persuading through flattery or sweet talk. p. 10

From the verb wheedle; also used as a verb form.

Ziggurat n.

1. A stepped, pyramid-shaped temple tower of ancient Mesopotamia. p. 14