Someone or something (mang-) causes wood or vegetation (-en) to decay, rot or someone lets something rot.
Mangrokop chimoy so atep an pirmi a mabasa.
The rain causes the (grass) roof to rot if it is always wet.
Mangrokop akos garami tan pangabōno ko.
I let the rice straw rot so that it is for my fertilizer.
Wood or vegetation (ma-) is decayed, rotten.
rukóp
dupók
hunâ
rukup
Narokop kayowaya, as dawa nasday baldiaya.
The wood is rotten, that is why the barrel fell.