Where does “sustenire” come from?

sustenire (Vulgar Latin) comes from Latin sustineo, from Latin sub-, from Proto-Indo-European upó, from Proto-Indo-European h₃ewp-.

Ancestry of “sustenire”, step by step

sustenire traces back through two separate lines of ancestry.

via Latin sustineo

StepLanguageWordMeaning
1LatinsustineoI hold up or upright, uphold, keep up, bear up,...
2Latinsub-under, sub
3Proto-Indo-Europeanupóunder, below
4Proto-Indo-Europeanh₃ewp-—

via Latin sustinēre

StepLanguageWordMeaning
1Latinsustinēre—

Words derived from “sustenire”

Every word from Proto-Indo-European h₃ewp- →Every word from Proto-Indo-European upó →Every word from Latin sub- →