Etymology
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moisturize (v.)

"impart moisture to, remove dryness, make slightly damp or wet," 1915 (implied in moisturizing), in reference to a commercial egg incubator, from moisture + -ize. By 1953 in reference to creams and lotions for the skin. Related: Moisturized; moisturization.

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chopper (n.)

1550s, "one who chops," agent noun from chop (v.1). Meaning "meat cleaver" is by 1818. Meaning "helicopter" is from 1951, Korean War military slang (compare egg-beater); as a type of stripped-down motorcycle (originally preferred by Hells Angels) from 1965.

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Caesar salad (n.)

salad of romaine lettuce and croutons dressed with egg, anchovies, pepper, etc., 1952, said to be named not for the emperor, but for Cesar Cardini, restaurant owner in Tijuana, Mexico, who is said to have served the first one c. 1924.

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ovoviviparous (adj.)

"producing eggs which are hatched within the body of the parent, but without placental attachment," 1801, from combining form of ovum "egg" + viviparous "bringing forth young alive." It occurs in many reptiles, and some fishes, insects, worms, etc. Related: Ovoviviparity.

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roc (n.)

monstrous predatory bird of Arabian mythology, 1570s, from Arabic rukhkh, from Persian rukh. It is mentioned in Marco Polo's account of Madagascar; according to OED, modern use of the word mostly is due to translations of the "Arabian Nights" tales. Hence roc's egg "something marvelous or prodigious." Compare simurgh.

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edge (n.)

Old English ecg "corner, edge, point," also "sword" (also found in ecgplega, literally "edge play," ecghete, literally "edge hate," both used poetically for "battle"), from Proto-Germanic *agjo (source also of Old Frisian egg "edge;" Old Saxon eggia "point, edge;" Middle Dutch egghe, Dutch eg; Old Norse egg, see egg (v.); Old High German ecka, German Eck "corner"), from PIE root *ak- "be sharp, rise (out) to a point, pierce."

Spelling development of Old English -cg to Middle English -gg to Modern English -dge represents a widespread shift in pronunciation. To get the edge on (someone) is U.S. colloquial, first recorded 1911. Edge city is from Joel Garreau's 1992 book of that name. Razor's edge as a perilous narrow path translates Greek epi xyrou akmes. To be on edge "excited or irritable" is from 1872; to have (one's) teeth on edge is from late 14c., though "It is not quite clear what is the precise notion originally expressed in this phrase" [OED].

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lysozyme 

type of immune-system enzyme found in tears, saliva, egg-whites, etc., 1922, named by its discoverer, Alexander Fleming (six years before he discovered penicillin), who coined it from lyso- "loosening, dissolving" + suffix from enzyme. So called because it attack bacteria cell walls.

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edge (v.)

late 13c., "to give an edge to" (implied in past participle egged), from edge (n.). Intransitive meaning "to move edgeways (with the edge toward the spectator), advance slowly" is from 1620s, originally nautical. Meaning "to defeat by a narrow margin" is from 1953. The meaning "urge on, incite" (16c.) often must be a mistake for egg (v.). Related: Edger.

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cocoon (n.)

"sikly envelop which the larvae of many insects spin as a covering while they are in the crysalis state," 1690s, from French coucon (16c., Modern French cocon), from coque "clam shell, egg shell, nut shell," from Old French coque "shell," from Latin coccum "berry," from Greek kokkos "berry, seed" (see cocco-). The sense of "one's interior comfort place" is from 1986. Also see -oon.

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mousse (n.)

1892, in cookery sense in reference to a frothy dish stiffened with egg whites, etc., from French mousse, from Old French mousse "froth, scum," from Late Latin mulsa "mead," from Latin mulsum "honey wine, mead," from neuter of mulsus "mixed with honey," related to mel "honey" (from PIE root *melit- "honey"). Meaning "preparation for hair" is from 1977, so called for resemblance of the substance. As a verb in this sense from 1984. Related: Moussed.

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