English
finlet
From fin + -let.
A compound of fin + -let
Proto-Indo-European *(s)pīn- ‘backbone, dorsal fin’
Proto-Germanic *finnō
Old English finn
Middle English fin
English fin
Today it means
noun Small non-retractable fins, generally on the caudal peduncle between the last dorsal or anal fin and the caudal fin of some fishes. In some groups, such as tuna, finlets are rayless.
Language periods are conventional ranges, not dates for this word.
Etymograph / finlet