Where does “quadrivalve” come from?

quadrivalve (English) comes from English valve, from Latin valva, from Proto-Italic *wolVwā-, from Proto-Indo-European *wol-ew-o-.

quadrivalve (English): A door, shutter, etc. with four folds; dehiscent...

Definitions

  1. A door, shutter, etc. with four folds; dehiscent...

Ancestry of “quadrivalve”, step by step

quadrivalve traces back through two separate lines of ancestry.

via English valve

StepLanguageWordMeaning
1EnglishvalveA device that controls the flow of a gas or fluid...
2Latinvalvadouble or folding door; one leaf of such doors
3Proto-Italic*wolVwā-—
4Proto-Indo-European*wol-ew-o-—

via Italian valva

StepLanguageWordMeaning
1Italianvalvavalve, half shell

Words derived from “quadrivalve”

Every word from Proto-Indo-European *wol-ew-o- →Every word from Proto-Italic *wolVwā- →Every word from Latin valva →