Where does “тазъ” come from?

тазъ (Old East Slavic) comes from Persian تاس, from Persian طاس, from Arabic طاس, from Arabic طَسْت, from Middle Persian tšt', from Proto-Iranian taš-, from Proto-Indo-Iranian *tā́ćšti, from Proto-Indo-European *tḗtḱ-ti ~ *tétḱ-n̥ti — to sire, beget.

Ancestry of “тазъ”, step by step

StepLanguageWordMeaning
1PersianتاسAlternative form of طاس
2Persianطاسcup; bowl; die, dice
3Arabicطاسbowl, cup
4Arabicطَسْت
5Middle Persiantšt'bowl
6Proto-Iraniantaš-to make, construct; to cut
7Proto-Indo-Iranian*tā́ćšti
8Proto-Indo-European*tḗtḱ-ti ~ *tétḱ-n̥ti
9Proto-Indo-Europeantetḱ-to create, produce; to cut, hew
10Proto-Indo-Europeanteḱ-to sire, beget

Words derived from “тазъ

Every word from Proto-Indo-European teḱ-Every word from Proto-Indo-European tetḱ-Every word from Proto-Indo-European *tḗtḱ-ti ~ *tétḱ-n̥ti