English
swiftlet
From swift + -let.
Formed from swift + -let
Proto-Indo-European *(s)weyp- ‘to twist’
Proto-Germanic *swiftaz
Old English swift
Middle English swift
English swift
Today it means
noun Any of the various tropical and subtropical birds of the four genera Aerodramus, Hydrochous, Schoutedenapus, and Collocalia in the swift family, many of which can navigate in darkness using echolocation.
Language periods are conventional ranges, not dates for this word.
Etymograph / swiftlet