Vermin
来自Big Physics
Middle English (originally denoting animals such as reptiles and snakes): from Old French, based on Latin vermis ‘worm’.
wiktionary
From Middle English vermyn, from Anglo-Norman and Old French vermine, from Vulgar Latin *verminum(“vermin”), collective noun formed from Latin vermis(“worm”). See also worm.
etymonline
vermin (n.)
c. 1300, "noxious animals," from Anglo-French and Old French vermin "moth, worm, mite," in plural "troublesome creatures" (12c.), from Vulgar Latin *verminum "vermin," possibly including bothersome insects, collective noun formed from Latin vermis "worm" (from PIE root *wer- (2) "to turn, bend"). Extended to "low, obnoxious people" by 1560s.
