The Austronesian Comparative Dictionary

*baŋbaŋ₃ cavity, pit, den; to excavate a pit

PMP baŋbaŋ₃ cavity, pit, den; to excavate a pit

WMP
Bontok baŋbaŋ to bury, as a dead animal or rubbish
Ifugaw baŋbaŋ plant something that must grow in the earth, not in the mud
Tagalog bambáŋ canal, ditch
Manobo (Western Bukidnon) baŋbaŋ a hole dug in the ground; to dig
Mentawai babak excavation, hole, den
Balinese baŋbaŋ hollow place, esp. in a road; pit, grave; den; dig a hole or pit in the ground

POC babaŋ hole, cavern

OC
Mono-Alu baba a small hole
Nggela mbamba crab's hole; hollow in a tree; a large cave