Where does “maglubong” come from?

maglubong (Bikol Central) comes from Cebuano lubong, from Proto-Austronesian *ləbəŋ.

Ancestry of “maglubong”, step by step

Step	Language	Word	Meaning
1	Cebuano	lubong	the act of burying; an interment; a burial; to...
2	Proto-Austronesian	*ləbəŋ	—