From Proto-Tai *cetᴰ (“seven”), from Middle Chinese 七 (MC tshit, “seven”). Cognate with Thai เจ็ด (jèt), Lao ເຈັດ (chet), Tai Dam ꪹꪊꪸꪒ, Shan ၸဵတ်း (tsáet), Ahom 𑜋𑜢𑜄𑜫 (chit), Bouyei xadt, Zhuang caet, Nong Zhuang jiat.
ᥓᥥᥖᥱ (tsět) (1963 orthography ᥓᥥᥖ̌)