Where does “soutenir” come from?

soutenir (French) comes from Middle French soustenir, from Old French soustenir, from Vulgar Latin sustenire, from Latin sustineo, from Latin sub-, from Proto-Indo-European upó, from Proto-Indo-European h₃ewp-.

soutenir (French): to support; to keep up; to maintain

Definitions

to support; to keep up; to maintain

Ancestry of “soutenir”, step by step

soutenir traces back through two separate lines of ancestry.

via Middle French soustenir

Step	Language	Word	Meaning
1	Middle French	soustenir	to keep up; to sustain
2	Old French	soustenir	to keep up; to sustain; to bear
3	Vulgar Latin	sustenire	—
4	Latin	sustineo	I hold up or upright, uphold, keep up, bear up,...
5	Latin	sub-	under, sub
6	Proto-Indo-European	upó	under, below
7	Proto-Indo-European	h₃ewp-	—

via Old French sustenir

Step	Language	Word	Meaning
1	Old French	sustenir	to hold up; to support; to support; to sustain

Words derived from “soutenir”

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