Where does “nonvalve” come from?

nonvalve (English) comes from English non, from French non, from Old French non, from Latin nōn, from Old Latin noenum, from Proto-Indo-European óynos — one; single.

nonvalve (English): Not involving or relating to a valve

Definitions

  1. Not involving or relating to a valve

Ancestry of “nonvalve”, step by step

nonvalve traces back through two separate lines of ancestry.

via English non

StepLanguageWordMeaning
1EnglishnonObsolete form of none
2Frenchnonno; not; a no, a negative response
3Old Frenchnonno; not; Alternative form of nom
4Latinnōnnot
5Old Latinnoenum
6Proto-Indo-Europeanóynosone; single

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-
Every word from Proto-Indo-European óynosEvery word from Old Latin noenumEvery word from Latin nōn
nonvalve — Etymology, Origin & Word History | Etymology Explorer