Where does “matu'a” come from?

matu'a (Rapa Nui) comes from Proto-Polynesian matuqa, from Proto-Malayo-Polynesian (ma-)tuqah, from Proto-Austronesian (ma-)tuqaS — old.

matu'a (Rapa Nui): parent

Definitions

Step	Language	Word	Meaning
1	Proto-Polynesian	matuqa	parent
2	Proto-Malayo-Polynesian	(ma-)tuqah	old
3	Proto-Austronesian	(ma-)tuqaS	old

matu'a — Etymology, Origin & Word History | Etymology Explorer