Someone (may-) covers the entire body of someone (-an) with something as a blanket (i-).
Ivv. vuvun 'to bury the dead'
Naybōbon ako so ayob, ta mahanebneb.
I covered myself with a blanket, because it is cold.
Bōbonan mo a maganay anak mo.
Cover your child well.
Ibōbon mo ayobaya dyaken.
Cover me with the blanket.