Where does “*ɡamᴬ⁴” come from?

*ɡamᴬ⁴ (Proto-Southwestern Tai) comes from Proto-Tai ɡamᴬ — bite ; speech.

Ancestry of “*ɡamᴬ⁴”, step by step

Step	Language	Word	Meaning
1	Proto-Tai	ɡamᴬ	bite ; speech

*ɡamᴬ⁴ — Etymology, Origin & Word History | Etymology Explorer