Hlai fas

← Proto-Hlai *fʰaːʔ (inherited)

← Proto-Hlai *C-waːʔ (inherited)

← Proto-Tai *vaːᶜ (cognate)

← Thai ฟ้า (cognate)

← Undetermined *faːʔ (mention)

← Undetermined *C-waːʔ (mention)