Where does “nuwo” come from?

nuwo (Aiwoo) comes from Proto-Oceanic patu, from Proto-Eastern Malayo-Polynesian *batu, from Proto-Central-Eastern Malayo-Polynesian *batu, from Proto-Malayo-Polynesian batu, from Proto-Austronesian *batux — rock; stone.

Ancestry of “nuwo”, step by step

StepLanguageWordMeaning
1Proto-Oceanicpatustone, rock
2Proto-Eastern Malayo-Polynesian*batu—
3Proto-Central-Eastern Malayo-Polynesian*batu—
4Proto-Malayo-Polynesianbatustone
5Proto-Austronesian*batuxrock; stone
Every word from Proto-Austronesian *batux →Every word from Proto-Malayo-Polynesian batu →Every word from Proto-Central-Eastern Malayo-Polynesian *batu →