Etymograph

English

hackleback

From hackle + back.

A compound of hackle + back

Proto-Germanic *hakulǭ

Old English hæcla

Middle English hakle

English hackle

Proto-Germanic *baką ‘back’

Proto-West Germanic *bak

Old English bæc

Middle English bak ‘the back’

English back

Today it means

noun A small North American sturgeon, Scaphirhynchus platorynchus, the roe of which is harvested for caviar

Language periods are conventional ranges, not dates for this word.

Etymograph / hackleback