From Proto-Tai *pɯwᴬ (“crab”). Cognate with Thai ปู (bpuu), Lao ປູ (pū), Tai Dam ꪜꪴ, Lü ᦔᦴ (ṗuu), Shan ပူ (pǔu), Ahom 𑜆𑜥 (pū), Zhuang baeu, Bouyei baul.
เป๋า (transliteration needed)