Where does “ngaupuku” come from?

ngaupuku (Maori) comes from Maori puku, from Proto-Polynesian *puku, from Proto-Oceanic *buku, from Proto-Austronesian *bukuh.

Ancestry of “ngaupuku”, step by step

ngaupuku traces back through two separate lines of ancestry.

via Maori puku

StepLanguageWordMeaning
1Maoripukustomach, belly
2Proto-Polynesian*puku—
3Proto-Oceanic*buku—
4Proto-Austronesian*bukuh—

via Maori ngau

StepLanguageWordMeaning
1Maoringau—
Every word from Proto-Austronesian *bukuh →Every word from Proto-Oceanic *buku →Every word from Proto-Polynesian *puku →