Where does “unsustainably” come from?

unsustainably (English) comes from English unsustainable, from English sustainable, from English sustain, from Middle English susteinen, from Old French sustenir, from Vulgar Latin sustenire, from Latin sustineo, from Latin sub-.

unsustainably (English): In an unsustainable manner

Definitions

  1. In an unsustainable manner

Ancestry of “unsustainably”, step by step

StepLanguageWordMeaning
1EnglishunsustainableNot sustainable
2EnglishsustainableAble to be sustained; Able to be produced or...
3EnglishsustainTo maintain, or keep in existence; To provide for...
4Middle Englishsusteinen
5Old Frenchsustenirto hold up; to support; to support; to sustain
6Vulgar Latinsustenire
7LatinsustineoI hold up or upright, uphold, keep up, bear up,...
8Latinsub-under, sub
9Proto-Indo-Europeanupóunder, below
10Proto-Indo-Europeanh₃ewp-
Every word from Proto-Indo-European h₃ewp-Every word from Proto-Indo-European upóEvery word from Latin sub-
unsustainably — Etymology, Origin & Word History | Etymology Explorer