on-
onkasal/ mankakasal/ kimasal
To become coarse or calloused; refers to rice bran after first pounding, skin on hands, hair, etc.
Onkasal i diwam no man-obda ka na olay.
Your hands will become calloused if you work all the time.
i-
ikasal/ inkasal,
mengi-
mengikasal/ mankakasal/ engikasal,
may-
maykasal/ iyaykasal
To cause to be coarse or calloused or tough.
Ikasal ko fangoy diwak na kabjon say may-ingsa.
I will toughen my hands with the hoe so they will become used to it.