English

equinumerous

From equi- + numerous.

Old Latin aiquos

Latin aequus ‘equal’

English equi-

Proto-Indo-European *nem- ‘to distribute’

Proto-Italic *nomezos

Latin numerus ‘number’

Latin numerōsus ‘numerous, abundant’

Middle English numerous

Today it means

adj Having equal cardinality.

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

Etymograph / equinumerous