English

hemiorbicular

From hemi- + orbicular.

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

Proto-Indo-European *sēmi ‘half’

English hemi-

Latin orbis ‘orb’

Latin orbiculus ‘diminutive of orbis: a small disk’

Late Latin orbiculāris ‘circular, orbicular’

Today it means

adj hemispherical or semicircular

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

Etymograph / hemiorbicular