From Proto-Tai *C̥.baːᴮ (“shoulder”). Cognate with Thai บ่า (bàa), Northern Thai ᨷ᩵ᩤ, Lao ບ່າ (bā), Shan မႃႇ (màa) or ဝႃႇ (wàa), Ahom 𑜈𑜡 (bā).
mbaq (1957–1982 spelling ƃaƽ)