For someone (agent) to do something at the edge of that (theme i-) with which, or that (loc ref, patient -on) to which an action is performed.
Occurs as part of a verb chain, see sec. 7.19.
Ihamadmu ta adim ipangngel an mummattilyuh nan lanha ta adi mapiku nan lanha.
Be careful so that you don't hammer at the edge of the nail (head) so the nail will not be crooked.
Pangngīlom di haphāpam.
Chop at the edge of (the board) you are chopping.
Pangngīlom di onom hinan tapāya ta ono' di pangngalnah awni.
Eat at the edge of the papaya which you will eat so that I will eat the other side in a little while.