English

semilateral

From semi- + lateral.

Proto-Indo-European *sem- ‘one’

Proto-Indo-European *sēmi ‘half’

English semi-

Latin latus ‘the side or flank’

Latin laterālis ‘belonging to the side’

Today it means

adj Partially lateral (partially on one's side)

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

Etymograph / semilateral