1381, from O.Fr.
mincier "make into small pieces," from V.L.
*minutiare "make small," from L.L.
minutiæ "small bits," from L.
minutus "small" (see
minute).
Mincemeat is first attested 1663 (originally in the fig. sense of what someone plans to make of his enemy), an alteration of earlier
minced meat (1578).
Mince-pie is attested from c.1600; as rhyming slang for "eye" it is attested from 1857.
Mincing "affectedly dainty" is first attested 1530, probably originally in ref. to speech, when words were "clipped" to affect elegance, or to walking with short steps.