English

epivalve

From epi- + valve.

Formed from epi- + valve

Proto-Indo-European *h₁épi ‘on’

Proto-Hellenic *epí

Ancient Greek ἐπί ‘on, upon’

English epi-

Latin valva ‘double door, valve’

Middle English valve

English valve

Today it means

noun The apical (top) valve of a diatom

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

Etymograph / epivalve