| chthonic | adj. | of creatures, deities, beings, or other things dwelling in the earth | ||
| chuck-farthing | n. | game similar to pitchpenny prevalent in 18th & 19th Centuries | British | |
| chuffed | adj. | delighted | informal | |
| chukka | n. | period in game of polo, lasting from 7 to 7-1/2 minutes of play | ||
| chunter | v. | to grumble, to complain | ||
| churl | n. | boor; freeman of lowest status under feudalism; peasant | ||
| chyle | n. | milky fats-containing fluid formed in the small intestine from chyme | ||
| chyme | n. | quasi-fluid mass of food acted upon by gastric processes and passed into the small intestine | ||
| ciborium | n. | baldachin, canopy over a high altar; receptacle for the Eucharist | ||
| cicatrize | v. | to heal by forming new skin tissue over a wound | ||
| cicerone | n. | knowledgeable tour guide | ||
| cinchona | n. | evergreen tree or shrub native to the Andes, now also grown in India and Java, yielding quinine | ||
| cinchonism | n. | quinine poisoning | ||
| cincture | n. | girdle, belt; enclosure | ||
| cinereous | adj. | of or related to ashes; ash-colored | ||
| circular insanity | n. | outdated term for manic-depressive disorder | obsolete | |
| circumflittergate | v. | to move around and around quickly in a purposeless and random manner | ||
| circumjacent | adj. | surrounding, in the area around | ||
| circumquaque | n. | roundabout speech or writing | ||
| circumvallation | n. | state of being surrounded by rampart or entrenchment | ||
| circumverbalistic | adj. | of the design or creation of crossword puzzles; of the solving of crossword puzzles | ||
| cispontine | adj. | of or related to this side of a bridge | ||
| cit | n. | derogatory term for citizen or city folk | ||
| cittern | n. | wire-string instrument similar to guitar, having a flat pear-shaped soundbox and asymmetric neck | ||
| clabber | v. | to curdle | ||
| clapboard | n. | board with one edge thicker than the other, used to weatherboard walls of buildings | ||
| clapper bridge | n. | old style of bridge in which large stone slabs are laid across a creek or river, usually on stone piers | ||
| clarigation | n. | solemn demand for redress made through heralds prior to declaration of war | ||
| clastic | adj. | (geology) formed from pieces of broken older rocks | ||
| cleat | n. | knob or device (often metal) used to secure lines on a nautical vessel; protrusion on shoes etc. to provide extra traction; strip secured across something to provide stability or strength | ||
| cleave | v. | 1 | to cut asunder | |
| cleave | v. | 2 | to stick fast; to adhere to (a person, principle, etc.) | |
| cleek | v. | to seize with the hand, to clutch strongly or suddenly; to snatch | ||
| cleg | n. | horsefly, gadfly | British | |
| clement | adj. | temperate, mild; merciful | ||
| clepsydra | n. | ancient timekeeping device using discharge of water to measure time; water-clock | ||
| clerestory | n. | upper part of building rising above interior space so as to allow the entry of daylight through high windows | ||
| clew | n. | skein or ball of yarn, etc | ||
| climb the wooden hill to Bedfordshire | v. | to go to bed, to sleep | British | |
| clinamen | n. | the unpredictable swerve of atoms, in the philosophy of Lucretius | ||
| clinker | n. | fused matter left behind from burning combustible material in furnace or forge, piece of slag | ||
| clinker-built | adj. | of a ship’s hull built with the edges of its planks overlapping, as opposed to “carvel-built” ships where the planks are fitted side-by-side and flush with one another | nautical | |
| cloche | n. | glass cover placed over plants; bell-shaped cover for plates of food; close-fitting brimmed woman’s hat | ||
| clodpole | n. | stupid fellow | ||
| cloistral | adj. | of or related to a cloister | ||
| clonic | adj. | of or related to spasmodic muscular convulsions | ||
| closestool | n. | (also close-stool) stool with hole in its seat, beneath which is a chamber pot | ||
| clothespress | n. | cabinet or wardrobe for storing clothes | ||
| clough | n. | valley or ravine with very steep sides, defile | ||
| clunch | n. | pale limestone rock mixture (sometimes with chalk or clay) used as building material |