Proto-Tai *wɤjᴬ

→ Tai Dam ꪼꪡ (inherited)

→ Biao pɔi¹ (cognate)

→ Lü ᦺᦝ (inherited)

→ Lao ໄຟ (inherited)

→ Northern Thai ᨼᩱ (inherited)

→ Shan ၽႆး (inherited)

→ Shan ၾႆး (inherited)

→ Saek วี๊ (inherited)

→ Tai Nüa ᥜᥭᥰ (inherited)

→ Thai ไฟ (inherited)

→ Zhuang feiz (inherited)