Where does “Maguindánao” come from?

Maguindánao (Spanish) comes from Maguindanao Magindanaw, from Maguindanao maginged, from Maguindanao inged.

Ancestry of “Maguindánao”, step by step

Step	Language	Word	Meaning
1	Maguindanao	Magindanaw	—
2	Maguindanao	maginged	—
3	Maguindanao	inged	—

Maguindánao — Etymology, Origin & Word History | Etymology Explorer