crankyoudaoicibaDictYouDict[crank 词源字典]
crank: [OE] There appears to be a link between the words crank, cringe, and crinkle. They share the meaning element ‘bending’ or ‘curling up’ (which later developed metaphorically into ‘becoming weak or sick’, as in the related German krank ‘ill’), and probably all came from a prehistoric Germanic base *krank-. In Old English the word crank appeared only in the compound crancstoef, the name for a type of implement used by weavers; it is not recorded in isolation until the mid-15th century, when it appears in a Latin-English dictionary as a translation of Latin haustrum ‘winch’.

The adjective cranky [18] is no doubt related, but quite how closely is not clear. It may derive from an obsolete thieves’ slang term crank meaning ‘person feigning sickness to gain money’, which may have connections with German krank. Modern English crank ‘cranky person’ is a backformation from the adjective, coined in American English in the 19th century.
=> cringe, crinkle[crank etymology, crank origin, 英语词源]
crank (n.)youdaoicibaDictYouDict
"handle for turning a revolving axis," Old English *cranc, implied in crancstæf "a weaver's instrument," crencestre "female weaver, spinster," from Proto-Germanic base *krank-, and related to crincan "to bend, yield" (see crinkle, cringe). English retains the literal sense of the ancient root, while German and Dutch krank "sick," formerly "weak, small," is from a figurative use. The 1825 supplement to Jamieson's Scottish dictionary has crank "infirm, weak, etc."

The sense of "an eccentric person," especially one who is irrationally fixated, is first recorded 1833, said to be from the crank of a barrel organ, which makes it play the same tune over and over; but more likely a back-formation from cranky (q.v.). Meaning "methamphetamine" attested by 1989.
crank (v.)youdaoicibaDictYouDict
1590s, "to zig-zag," from crank (n.). Meaning "to turn a crank" is first attested 1908, with reference to automobile engines. Related: Cranked; cranking.