vermin

Etymology

From Middle English vermyn, vermyne, from Old French vermine, from Vulgar Latin *verminum (“vermin”), collective noun formed from Latin vermis (“worm”). See also worm.

noun

1. (countable or uncountable) Any one of various common types of small insects or animals which cause harm and annoyance.
   The area was plagued by all sorts of vermin: fleas, lice, mice, and rats to name a few.
2. (countable or uncountable) Animals that prey on game, such as foxes or weasels.
3. (countable or uncountable) Obnoxious, or mean and offensive person or people.
   Bring these vermin to the Palace of Justice.