From Middle Chinese 客 (MC khaek, “guest”). Cognate with Thai แขก (kɛ̀ɛk), Lü ᦶᦃᧅᧈ (ẋaek¹), Shan ၶႅၵ်ႇ (khèk), Ahom 𑜁𑜢𑜀𑜫 (khik), Zhuang hek.
ແຂກ • (khǣk)