English

subzone

From sub- + zone.

Formed from sub- + zone

Proto-Indo-European *upó ‘up; from below’

Proto-Italic *supo ‘under’

Latin sub ‘under, beneath, below’

English sub-

Proto-Indo-European *yoh₃snéh₂

Ancient Greek ζώνη ‘belt, sash, girdle’

Latin zōna ‘belt’

English zone

Today it means

noun A zone making up part of a larger zone.

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