English

hogback

From hog + back.

A compound of hog + back

Middle English hog ‘a pig or swine, especially one that is…’

English hog

Proto-Germanic *baką ‘back’

Proto-West Germanic *bak

Old English bæc

Middle English bak ‘the back’

English back

Today it means

noun A sharp steep-sided ridge formed by the erosion of tilting strata,

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