Where does “day” come from?

day (Talysh) comes from Azerbaijani dayı, from Proto-Turkic tāy — uncle.

day (Talysh): maternal uncle

Definitions

  1. maternal uncle

Ancestry of “day”, step by step

StepLanguageWordMeaning
1Azerbaijanidayımaternal uncle, one's mother's brother
2Proto-Turkictāyuncle
Every word from Proto-Turkic tāy →Every word from Azerbaijani dayı →
day — Etymology, Origin & Word History | Etymology Explorer