English

hemisulcus

From hemi- + sulcus.

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

Proto-Indo-European *sēmi ‘half’

English hemi-

Proto-Indo-European *selk- ‘to pull, drag’

Latin sulcus ‘a furrow made by a plow’

Today it means

noun A shallow groove or fissure that divides a structure into two hemispheres.

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

Etymograph / hemisulcus