Where does “si” come from?

si (French) comes from Old French se, from Latin sē, from Proto-Indo-European swé — self.

si (French): if; even if; yes

Definitions

  1. if; even if; yes

Ancestry of “si”, step by step

StepLanguageWordMeaning
1Old Frenchsehimself; herself; itself
2Latinsēwithout
3Proto-Indo-Europeanswéself
Every word from Proto-Indo-European swé →Every word from Latin sē →Every word from Old French se →