Where does “nonplanned” come from?

nonplanned (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.

nonplanned (English): unplanned

Definitions

  1. unplanned

Ancestry of “nonplanned”, step by step

nonplanned 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 planned

StepLanguageWordMeaning
1Englishplannedsimple past tense and past participle of plan;...
Every word from Proto-Indo-European óynos
nonplanned — Etymology, Origin & Word History | Etymology Explorer