Where does “nonsustainable” come from?

nonsustainable (English) comes from English sustainable, from English sustain, from Middle English susteinen, from Old French sustenir, from Vulgar Latin sustenire, from Latin sustineo, from Latin sub-, from Proto-Indo-European upó.

nonsustainable (English): Not sustainable

Definitions

  1. Not sustainable

Ancestry of “nonsustainable”, step by step

nonsustainable traces back through two separate lines of ancestry.

via English sustainable

StepLanguageWordMeaning
1EnglishsustainableAble to be sustained; Able to be produced or...
2EnglishsustainTo maintain, or keep in existence; To provide for...
3Middle Englishsusteinen
4Old Frenchsustenirto hold up; to support; to support; to sustain
5Vulgar Latinsustenire
6LatinsustineoI hold up or upright, uphold, keep up, bear up,...
7Latinsub-under, sub
8Proto-Indo-Europeanupóunder, below
9Proto-Indo-Europeanh₃ewp-

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
Every word from Proto-Indo-European h₃ewp-Every word from Proto-Indo-European upóEvery word from Latin sub-