Where does “nonconstancy” come from?

nonconstancy (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.

nonconstancy (English): Lack of constancy; variability

Definitions

  1. Lack of constancy; variability

Ancestry of “nonconstancy”, step by step

nonconstancy 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 constancy

StepLanguageWordMeaning
1EnglishconstancyThe quality of being constant; steadiness or...
2LatinConstantiafirmness, steadiness, constancy, perseverance
3Latincōnstāre
Every word from Proto-Indo-European óynosEvery word from Old Latin noenumEvery word from Latin nōn