From Middle Chinese 主 (MC t͡ɕɨoX, “master; owner”). Cognate with Thai เจ้า (jâao), Lao ເຈົ້າ (chao), Tai Dam ꪹꪊ꫁ꪱ, Shan ၸဝ်ႈ (tsāw), Ahom 𑜋𑜈𑜫 (chaw) or 𑜋𑜨𑜧 (chow).
ᦈᧁᧉ (ṫsaw2)
Compare Lao ເຈົ້າ (chao).