Etymology

fin

F4I1N1

Today it means: One of the appendages of a fish, used to propel itself and to manoeuvre/maneuver. Full definition →

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fin · noun, verb1

From Middle English fin, from Old English finn, from Proto-Germanic *finnō, *finǭ (“dorsal fin”) (compare Dutch vin, German Finne, Swedish finne, fena), from Proto-Indo-European *(s)pīn- (“backbone, dorsal fin”) (compare Old Irish ind (“end, point”), Latin pinna (“feather, wing, fin”), Tocharian A spin (“hook”).

fin · noun2

From Yiddish פֿינף (finf, “five”). Doublet of cinque, finnuf, five, pimp (“five”), ponzu, punch (“beverage”), and sengi (“currency”).

fin · noun3

From French fin (“end”). Doublet of fine and finis.

fin · noun4

Clipping of finasteride.

Etymology from Wiktionary, CC BY-SA 4.0.