Quirk
来自Big Physics
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early 16th century (as a verb): of unknown origin. The early sense of the noun was ‘subtle verbal twist, quibble’, later ‘unexpected twist’.
wiktionary
First attested in the 1540s. Of uncertain origin.
etymonline
quirk (n.)
1560s, "a quibble, an artful evasion," a word of unknown origin, perhaps connected to German quer (see queer (adj.)) via the notion of twisting and slanting; but its earliest appearance in western England dialect seems to argue against this as its source. Perhaps originally a technical term for a twist or flourish in weaving. Sense of "peculiarity" is c. 1600.
