Where does “why” come from?

why (Cornish) comes from Proto-Celtic swīs, from Proto-Indo-European wōs.

why (Cornish): you

Definitions

  1. you

Ancestry of “why”, step by step

StepLanguageWordMeaning
1Proto-Celticswīsyou pl
2Proto-Indo-Europeanwōs—
Every word from Proto-Indo-European wōs →Every word from Proto-Celtic swīs →