Where does “aith” come from?

aith (Scots) comes from Middle English oth, from Old English āþ, from Proto-West Germanic aiþ, from Proto-Germanic aiþaz, from Proto-Indo-European oyt-.

aith (Scots): oath

Definitions

  1. oath

Ancestry of “aith”, step by step

StepLanguageWordMeaning
1Middle Englishothoath
2Old Englishāþoath
3Proto-West Germanicaiþoath
4Proto-Germanicaiþazoath
5Proto-Indo-Europeanoyt-—
Every word from Proto-Indo-European oyt- →Every word from Proto-Germanic aiþaz →Every word from Proto-West Germanic aiþ →