Word Origin & History
crashc.1400, crasschen "break in pieces," appeared 14c. with no identifiable ancestors or relatives, and is probably onomatopoeic. Sense of "financial collapse" is 1817, "collision" is 1910, "falling airplane" is W.W.I. Computing sense is 1973, which makes it one of the earliest computer jargon words. Meaning
"break into a party, etc." is 1922. Slang meaning "sleep" dates from 1943; especially from 1965.