The Austronesian Comparative Dictionary

*umpu grandparent/grandchild (recipr.); ancestor

PMP umpu grandparent/grandchild (recipr.); ancestor

WMP
Moken opo the Lord
Cebuano umpu-ʔ grandparent or a grandparent's sibling or cousin of the same generation; term of address for a relation of the grandparent's generation
Makassarese opu Sir, Madam; title of traditional community leader
Makassarese (Salayar) opu Sir, Madam; title of traditional community leader
CMP
Soboyo uhu grandchild
Alune upu grandparent/grandchild
Buruese upu grandparent/grandchild; ancestor, lord
Kei ubu-n grandparent/grandchild
Fordata ubu grandparent/grandchild
Erai upun hahata grandmother
upun mamane grandfather
upu-n lord, master; spiritual chief and representative of a class of beings or things in Nature
Manggarai umpu grandmother
Komodo umpu grandfather/grandchild (reciprocal); forefather
Ngadha upu kin group, lineage
Kambera umbu Sir, lord, title of address for a man of high origin; grandfather
Rotinese upu grandchild
Proto-Ambon ubu ancestor
Wakasihu upo grandchild

PMP ta-umpu grandparent/grandchild (referential term used reciprocally)

WMP
Kadazan Dusun t-umpu wealthy man (any of the nobility)
Balantak tumpu grandchild
Malagasy tumpu master, owner; sir

POC tubu₂ grandparent/grandchild; ancestor

OC
Hawaiian k-upu-na grandparent, ancestor, relative of the grandparents' generation
Nukuoro d-ubu-na grandparent/ancestor
Nali tubru grandparent/grandchild; ancestors
Lou t-upu ancestors
Nehan tubu- grandparent/grandchild (recip.); ancestor of
Kove tuvu grandparent
Tuvaluan t-upu-na grandparent
Nggela t-umbu mother's brother/sister's child
Motu t-ubu grandparent/grandchild; posterity; ancestors
Anuta t-upu-na grandparent/ancestor
Rennellese t-upu-na classificatory grandfather or grandmother; term of address used by classificatory grandchild
Mota t-upu-i grandparent/grandchild
Niue tupuna fifine grandmother
t-upu-na ancestor
tupuna tane grandfather
Rarotongan t-upu-na ancestor/grandparent
Maori t-upu-na ancestor/grandparent
Tolai t-ubu-na grandparent/grandchild; the relationship between them
Watut rumbu- grandparent/grandchild (recipr.)