mag-
-on
-an
To scrub, scour something, such as a pot or floor.
kuskos
Sinopay magkoskos tang kandoagan ong baybay?
Who will scrub the frying pan down at the beach?
Agkoskosan na tang kasirola ta kenay agod sominggat
si.
She's scouring the casserole dish with sand so that it will shine
again.