Where does “nonsane” come from?

nonsane (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.

nonsane (English): Not sane; Unsound; not perfect

Definitions

  1. Not sane; Unsound; not perfect

Ancestry of “nonsane”, step by step

nonsane 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 sane

StepLanguageWordMeaning
1EnglishsaneBeing in a healthy condition; not deranged;...
2Latinsānussound in body, healthy, whole, well
3Proto-Indo-Europeanswā-n-healthy; whole; active; vigorous
Every word from Proto-Indo-European óynos →Every word from Old Latin noenum →Every word from Latin nōn →