From Thai ไห (hǎi).
ไฮ (transliteration needed)
From Proto-Southwestern Tai *rajᴬ⁴ (“chicken louse”), from Proto-Tai *rwɤjᴬ (“chicken louse”). Cognate with Thai ไร (rai), Northern Thai ᩁᩱ, Khün ᩁᩱ, Lao ໄຮ (hai), Lü ᦺᦣ (hay), Shan ႁႆး (hái), Tai Nüa ᥞᥭᥰ (häy), Phake ꩭႝ (hay), Ahom 𑜍𑜩 (ray), Zhuang reiz.
ไฮ (transliteration needed) (classifier ตัว)