Where does “síi” come from?

síi (Old Irish) comes from Proto-Celtic swīs, from Proto-Indo-European wōs.

síi (Old Irish): you nominative plural, ye

Definitions

  1. you nominative plural, ye

Ancestry of “síi”, step by step

síi traces back through two separate lines of ancestry.

via Proto-Celtic swīs

StepLanguageWordMeaning
1Proto-Celticswīsyou pl
2Proto-Indo-Europeanwōs—

via Sanskrit स्वप॑ति

StepLanguageWordMeaning
1Sanskritस्वप॑ति—
Every word from Proto-Indo-European wōs →Every word from Proto-Celtic swīs →