From Proto-Tai *ʑaːjᴬ (“male”). Cognate with Thai ชาย (chaai), Northern Thai ᨩᩣ᩠ᨿ, Lao ຊາຍ (sāi), Lü ᦋᦻ (tsaay), Shan ၸၢႆး (tsáai), Ahom 𑜋𑜩 (chay), Zhuang sai.
ᥓᥣᥭᥰ (tsäay) (1963 orthography ᥓᥣᥭ̈)
