From Proto-Tai *ʰreːŋᶜ (“dried up”). Cognate with Thai แห้ง (hɛ̂ɛng), Lao ແຫ້ງ (hǣng), Lü ᦶᦠᧂᧉ (ḣaeng2), Shan ႁႅင်ႈ (hāeng), Ahom 𑜑𑜢𑜂𑜫 (hing), Zhuang rengx.
raangx