Where does “nonprevention” come from?

nonprevention (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.

nonprevention (English): Absence of prevention; failure to prevent...

Definitions

  1. Absence of prevention; failure to prevent...

Ancestry of “nonprevention”, step by step

nonprevention 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 prevention

StepLanguageWordMeaning
1EnglishpreventionThe act of preventing or hindering; obstruction...
2Middle Englishprevencion
3Finnishpreventioprevention
Every word from Proto-Indo-European óynos