Where does “dei” come from?

dei (Middle English) comes from Old English dæġ, from Proto-West Germanic dag, from Proto-Germanic dagaz, from Proto-Indo-European dʰegʷʰ- — to burn; warm, hot.

dei (Middle English): Alternative form of day; Alternative form of þei;...

Definitions

  1. Alternative form of day; Alternative form of þei;...

Ancestry of “dei”, step by step

StepLanguageWordMeaning
1Old Englishdæġday, daytime
2Proto-West Germanicdagday
3Proto-Germanicdagazday; name of the D-rune
4Proto-Indo-Europeandʰegʷʰ-to burn; warm, hot
Every word from Proto-Indo-European dʰegʷʰ- →Every word from Proto-Germanic dagaz →Every word from Proto-West Germanic dag →
dei — Etymology, Origin & Word History | Etymology Explorer