Where does “nonextinction” come from?

nonextinction (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.

nonextinction (English): Lack of extinction; failure to become extinct

Definitions

  1. Lack of extinction; failure to become extinct

Ancestry of “nonextinction”, step by step

nonextinction 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 extinction

StepLanguageWordMeaning
1EnglishextinctionThe action of making or becoming extinct;...
2LatinextinctioAlternative form of exstinctiō; extinction,...
3Latinextingueresecond-person singular future passive indicative...
4LatinextinguoI quench, extinguish, kill
5LatinstinguoI put out, extinguish
6Proto-Italic*stengʷōto push
Every word from Proto-Indo-European óynosEvery word from Old Latin noenumEvery word from Latin nōn