French word source comes from Latin sortiri, and later Old French sourdre (To spurt; to gush (as in a liquid).)

Detailed word origin of source

Dictionary entry	Language	Definition
sortiri	Latin (lat)
sourdre	Old French (fro)	To spurt; to gush (as in a liquid).
sors	Old French (fro)
sorse	Old French (fro)
source	French (fra)	Source, spring (of water).

Words with the same origin as source