From Proto-Austroasiatic *rbaw, "gourd". The Proto-Munda etymon also was borrowed into Indo-Aryan: compare Sanskrit लाबू (lābū), Sauraseni Prakrit 𑀮𑀸𑀯𑀽 (lāvū), Bengali লাউ (lau).
ᱞᱟᱹᱣᱟ • (lăva)