From Proto-Tai *q.pɯlᴬ (“body hair; feather”). Cognate with Thai ขน (kǒn), Lao ຂົນ (khon), Lü ᦃᦳᧃ (ẋun), Shan ၶူၼ် (khǔun), Ahom 𑜁𑜤𑜃𑜫 (khun), Zhuang bwn.
ปุ๋น (transliteration needed)