Where does “dāt” come from?

dāt (Middle Persian) comes from Old Persian 𐎭𐎠𐎫, from Proto-Iranian *daHtáh, from Proto-Indo-European dh₃tós, from Proto-Indo-European -tós — Creates verbal adjectives from verb stems.

Ancestry of “dāt”, step by step

StepLanguageWordMeaning
1Old Persian𐎭𐎠𐎫law
2Proto-Iranian*daHtáhcreated
3Proto-Indo-Europeandh₃tósgiven
4Proto-Indo-European-tósCreates verbal adjectives from verb stems
Every word from Proto-Indo-European -tós →Every word from Proto-Indo-European dh₃tós →Every word from Proto-Iranian *daHtáh →