Where does “*kʰɛːŋᴬ¹” come from?

*kʰɛːŋᴬ¹ (Proto-Southwestern Tai) comes from Proto-Tai *k.reːŋᴬ.

Ancestry of “*kʰɛːŋᴬ¹”, step by step

Step	Language	Word	Meaning
1	Proto-Tai	*k.reːŋᴬ	—

*kʰɛːŋᴬ¹ — Etymology, Origin & Word History | Etymology Explorer