English
serpentess
From serpent + -ess.
Formed from serpent + -ess
Proto-Indo-European *serp- ‘to creep, crawl’
…
Latin serpō ‘to creep, crawl, move slowly’
Latin serpēns ‘snake’
Old French serpent ‘snake, serpent’
Middle English serpent
English serpent
Today it means
noun A female serpent.
Language periods are conventional ranges, not dates for this word.
Etymograph / serpentess