Where does “তথা” come from?

তথা (Assamese) comes from Sanskrit तथा, from Sanskrit यथा, from Proto-Indo-Iranian HyátʰaH, from Proto-Indo-European yós, from Proto-Finnic wiša, from Proto-Indo-Iranian wišás, from Proto-Indo-European wisós — fluidity, slime, poison; poison; poison; slime;...

তথা (Assamese): and

Definitions

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Ancestry of “তথা”, step by step

StepLanguageWordMeaning
1Sanskritतथाin that manner
2Sanskritयथाin which manner or way, according as, as, like
3Proto-Indo-IranianHyátʰaHin which way, as, in which manner
4Proto-Indo-Europeanyósthat, who, which
5Proto-Finnicwiša
6Proto-Indo-Iranianwišáspoison, venom
7Proto-Indo-Europeanwisósfluidity, slime, poison; poison; poison; slime;...
Every word from Proto-Indo-European wisósEvery word from Proto-Indo-Iranian wišásEvery word from Proto-Finnic wiša