Proto-Austric: *bVŋ
Meaning: a k. of insect
Austroasiatic meaning: spider
Proto-Austronesian: *bale(m)baŋ, *baŋbaŋ
Austronesian meaning: butterfly
Proto-Thai: NE THAI bʔɨŋ.C kind of insect (Melopaeus); bʔɨŋ.B insect like a mosquito; ZhT *buŋC 'caterpillar'
References: Ben 245, Peiros 1998, 85 (AN - Tai)