Where does “*kɛːwᴬ²” come from?

*kɛːwᴬ² (Proto-Southwestern Tai) comes from Proto-Tai *keːwᴬ, from Middle Chinese 交.

Ancestry of “*kɛːwᴬ²”, step by step

StepLanguageWordMeaning
1Proto-Tai*keːwᴬ—
2Middle Chinese交—
Every word from Middle Chinese 交 →Every word from Proto-Tai *keːwᴬ →