Origin and history of crack-up

crack-up(n.)

1926, in reference to airplane crashes; 1936, "disintegration under stress, mental collapse" [Fitzgerald]; from the verbal phrase, from crack (v.) + up (adv.). The verbal phrase in the meaning "to break up laughing" is by 1967, transitive and intransitive. Its earliest sense was "to praise extravagantly" (as in not all it's cracked up to be).

also from 1926

Entries linking to crack-up

crack(v.)

Middle English craken, from Old English cracian "make a sharp noise, give forth a loud, abrupt sound," from Proto-Germanic *krakojan (source also of Middle Dutch craken, Dutch kraken, German krachen); the whole group is probably ultimately imitative. Related: Cracked; cracking.

From c. 1300 as "burst, split open" (intransitive), also transitive, "cause to break into chinks." From 1785 as "break or crush into small pieces." Of the voice, "change tone suddenly," as that of a youth passing into manhood, c. 1600. The meaning "open and drink" (a bottle) is from 16c.

From early 14c. as "utter, say, speak, talk freely," especially "speak loudly or boastingly" (late 14c.). To crack a smile is from 1835, American English; to crack a joke is by 1732, probably from the "speak, say" sense. To crack the whip in the figurative sense is from 1886. To get cracking "go to work, start doing what is to be done" is by 1937.

What is a crack in English? A chat! The synonym is as perfect as possible; yet the words are subtly distinguished by a whole hemisphere of feeling. A chat, by comparison "wi' a crack," is a poor, frivolous, shallow, altogether heartless business. A crack is, indeed, only adequately to be defined as a chat with a good, kindly, human heart in it .... [P.P. Alexander, notes to "Last Leaves," Edinburgh, 1869]

up(adv., prep.)

"to or toward a point or place higher than another," Old English up, uppe, from Proto-Germanic *upp- "up," from PIE root *upo "under," also "up from under," hence also "over." As a preposition, from late Old English as "down onto, above and touching, sitting on, at the summit of;" from c. 1200 as "to a higher place."

Often used elliptically for go up, come up, rise up, etc. To be up to (something) "engaged in some activity" (typically reprehensible) is by 1837. Slang up the river "in jail" is recorded by 1891, originally in reference to Sing Sing, which is up the Hudson from New York City. To drive someone up the wall (1951) is from the notion of the behavior of lunatics or caged animals. Insulting retort up yours (scil. ass (n.2)) is attested by late 19c.

From the same Proto-Germanic source are Old Frisian, Old Saxon up "up, upward," Old Norse upp; Danish, Dutch op; Old High German uf, German auf "up;" Gothic iup "up, upward," uf "on, upon, under;" Old High German oba, German ob "over, above, on, upon."