Where does “da” come from?

da (Old Danish) comes from Old English dā, from Proto-Germanic *daihā, from Proto-Indo-European dʰeh₁(y)- — to suckle, nurse.

Ancestry of “da”, step by step

StepLanguageWordMeaning
1Old Englishdoe; female deer
2Proto-Germanic*daihā
3Proto-Indo-Europeandʰeh₁(y)-to suckle, nurse

Words derived from “da

Every word from Proto-Indo-European dʰeh₁(y)-Every word from Proto-Germanic *daihāEvery word from Old English