Where does “SI” come from?

SI (French) comes from French tôt, from Old French tost, from Latin tostum, from Latin tostus, from Proto-Italic *torstos.

SI (French): SI

Definitions

  1. SI

Ancestry of “SI”, step by step

SI traces back through two separate lines of ancestry.

via French tôt

StepLanguageWordMeaning
1Frenchtôtearly
2Old Frenchtostearly; soon; quickly; straight away
3Latintostumnominative neuter singular of tostus; accusative...
4Latintostusroasted, toasted, scorched, having been roasted;...
5Proto-Italic*torstos

via Old French si

StepLanguageWordMeaning
1Old Frenchsiso; thus; in such a way; Alternative form of se
2Latinif, supposing that
3Proto-Italicseiso, thus
4Proto-Indo-Europeanthis; that

Words derived from “SI

Every word from Proto-Italic *torstosEvery word from Latin tostusEvery word from Latin tostum