Where does “*ɣwanᴬ⁴” come from?

*ɣwanᴬ⁴ (Proto-Southwestern Tai) comes from Proto-Tai ɣwanᴬ.

Ancestry of “*ɣwanᴬ⁴”, step by step

Step	Language	Word	Meaning
1	Proto-Tai	ɣwanᴬ	—

*ɣwanᴬ⁴ — Etymology, Origin & Word History | Etymology Explorer