Where does “dat” come from?

dat (Middle High German) comes from Old High German dat, from Proto-West Germanic dādi, from Proto-Germanic dēdiz, from Proto-Indo-European dʰéh₁tis, from Proto-Indo-European dʰeh₁- — to do, put, place.

Ancestry of “dat”, step by step

StepLanguageWordMeaning
1Old High Germandatthat
2Proto-West Germanicdādideed
3Proto-Germanicdēdizdeed, act; doing, able to do, active
4Proto-Indo-Europeandʰéh₁tisact of putting, placement
5Proto-Indo-Europeandʰeh₁-to do, put, place

Words derived from “dat”

Every word from Proto-Indo-European dʰeh₁- →Every word from Proto-Indo-European dʰéh₁tis →Every word from Proto-Germanic dēdiz →