Where does “atte” come from?

atte (Middle High German) comes from Old High German atto, from Proto-West Germanic attō, from Proto-Germanic attô, from Proto-Indo-European átta — father.

Ancestry of “atte”, step by step

StepLanguageWordMeaning
1Old High Germanattofather
2Proto-West Germanicattōfather; forefather
3Proto-Germanicattôfather, dad; forefather
4Proto-Indo-Europeanáttafather
Every word from Proto-Indo-European áttaEvery word from Proto-Germanic attôEvery word from Proto-West Germanic attō