English

hemibrain

From hemi- + brain.

Formed from hemi- + brain

Proto-Indo-European *sem- ‘one, whole’

Proto-Indo-European *sēmi ‘half’

English hemi-

Proto-Germanic *bragną

Proto-West Germanic *bragn

Old English bræġn ‘brain’

Middle English brayn ‘brain’

English brain

Today it means

noun Either half of the vertically dissected brain

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

Etymograph / hemibrain