From Proto-Tai *wɤjᴬ (“fire”). Cognate with Thai ไฟ (fai), Lao ໄຟ (fai), Lü ᦺᦝ (fay), Tai Dam ꪼꪡ, Shan ၽႆး (pháy) or ၾႆး (fáy), Tai Nüa ᥜᥭᥰ (fay2), Zhuang feiz, Bouyei fix, Saek วี๊.
ᨼᩱ (fai)