English

equivalvular

From equi- + valvular.

Old Latin aiquos

Latin aequus ‘equal’

English equi-

Latin valva ‘double door, valve’

Latin valvula ‘diminutive of valva: valve, especially a…’

New Latin valvulāris

Today it means

adj equivalve

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

Etymograph / equivalvular