Any animal that creeps or crawls; a reptile; an insect. Obsolete. In Middle English often wild worm.

Originally: a creeping or crawling animal. In later use: spec. an animal of the vertebrate class Reptilia, the members of which are characterized…

A creeping thing or reptile, esp. one of a venomous or noxious kind. Obsolete.

An animal that creeps, a creeping thing, an insect or reptile; spec. (in vernacular speech) a louse.

One who or that which crawls; a crawling creature, a reptile, etc.

That creeps and crawls. Also transferred and figurative, sneaking, servile; (of feelings, etc.) full of eerie or uncanny suggestion; of or pertaining…