Etymology
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chad (n.1)

also Mr. Chad, simple graffiti drawing of a face peering over a fence or wall, with the caption, "Wot, no ______?" (the U.S. version usually had "Kilroy was here"), 1945, British, of unknown origin, a reaction to war-time shortages and rationing.

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romanticism (n.)

1803, "a romantic idea," from romantic + -ism. In literature, 1823, in a French context, in reference to a movement toward medieval forms (especially in reaction to classical ones), an association now more often confined to Romanesque. The movement began in German and spread to England and France. Generalized sense of "a tendency toward romantic ideas" is recorded by 1840.

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insensitive (adj.)

c. 1600, "having little or no reaction to what is perceived by one's senses," from in- (1) "not, opposite of" + sensitive. For sense, see insensate. From 1834 as "having little or no mental or moral sensitiveness;" meaning "without consideration for the feelings of others" attested by 1974. Related: Insensitively.

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snifter (n.)

1844, "a drink of liquor," earlier "a sniff," from a Scottish and northern English survival of an obsolete verb snift meaning "to sniff, snivel" (mid-14c.), of imitative origin (compare sniff (v.)). Meaning "large bulbous stemmed glass for drinking brandy" is from 1937. The association of "drinking liquor" with words for "inhaling, snuffling" (such as snort (n.), snootful) is perhaps borrowed from snuff-taking and the nasal reaction to it.

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withdrawal (n.)

1820s, "act of taking back," also "retraction of a statement," from withdraw + -al (2). Earlier words in the same sense were withdrawment (1640s); withdraught (mid-14c.). Meaning "removal of money from a bank, etc." is from 1861; psychological sense is from 1916; meaning "physical reaction to the cessation of an addictive substance" is from 1929 (with an isolated use from 1897; withdrawal symptom is from 1910). As a synonym for coitus interruptus from 1889.

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heliograph (n.)

1848, "instrument for taking photographs of the sun," from helio- "sun" + -graph "something written." Earlier, "a description of the sun" (1706, implied in heliographic). From 1877 as the name of a movable mirror used in signaling. Related: Heliographical.

Heliography (1845) was the word for the product of a type of engraving process by chemical reaction from exposure to sunlight. It also was an early term for what came to be called photography (1840).

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turbine (n.)

1838, "waterwheel driven by the impact or reaction of a flowing stream of water," from French turbine (19c.), from Latin turbinem (nominative turbo) "spinning top, eddy, whirlwind, that which whirls," related to turba "turmoil, crowd" (see turbid). Originally applied to a wheel spinning on a vertical axis driven by falling water, later of mechanisms driven by the flow of air. Turbo in reference to gas turbine engines is attested from 1904.

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revulsion (n.)

1540s, as a medical term for counter-irritation as a healing technique, from French revulsion (16c.) or directly from Latin revulsionem (nominative revulsio) "a tearing off, act of pulling away," noun of action from past-participle stem of revellere "to pull away," from re- "away" (see re-) + vellere "to tear, pull" (from PIE *wel-no-, suffixed form of *uelh- "to strike;" see svelte).

From c. 1600 as "act of drawing back or away." The meaning "sudden or violent change of feeling," especially "sudden reaction of disgust" is attested by 1816.

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Fauvist 

movement in painting associated with Henri Matisse, 1915, from French fauve, "wild beast," a term applied in contempt to these painters by French art critic Louis Vauxcelles at Autumn Salon of 1905. The movement was a reaction against impressionism, featuring vivid use of colors. French fauve (12c.) in Old French meant "fawn-colored horse, dark-colored thing, dull," and is from Frankish *falw- or some other Germanic source, cognate with German falb "dun, pale yellowish-brown" and English fallow "brownish-yellow," from PIE root *pel- (1) "pale." Related: Fauvism (1912).

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insensate (adj.)

1510s, "lacking or deprived of physical senses," from Late Latin insensatus "irrational, foolish," from in- "not" (see in- (1)) + sensatus "gifted with sense" (see sensate).

Meaning "irrational, maniacal, lacking or deprived of mental sense" is from 1520s; meaning "lacking or deprived of moral sense, unfeeling" is from 1550s. Insensate means "not capable of feeling sensation," often "inanimate;" insensible means "lacking the power to feel with the senses," hence, often, "unconscious;" insensitive means "having little or no reaction to what is perceived by one's senses," often "tactless." Related: Insensately; insensateness.

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