Someone (mang-) piles, stacks something (-en).
Ivv. 'to pile stones, to construct riprap to stop soil erosion'
buntón
upu
Opohen da ānang paray do hakawan.
They, mother and others, pile the rice in the field.
Inopo ko a tabo libro do lamisaan.
I stacked all the books on the table.
Grain, crops, rocks, etc., (ma-) are piled.
ma- mawpo
Nanghap ako do mawpo a dokay so isohad ko.
I got (yams) from the yams that are piled to boil.
nakawpwan
The place something is stacked.