For a person, living thing (actor & patient ma-) to die, because of something (inst i-), as by a child one is rescuing, a sickness, a political cause.
matoy
Natoy han nitanom ti ūgaw.
That which was planted died because it is the dry season.
Inyatoy Uhmug din ongol an poghāna an wah bagangna.
Uhmug died because of a large boil on his neck.
ma-: matoy