Word Class: 
verb prefix
Middle, mid, in half, in two. This prefix attaches to verb roots in a similar way to incorporated bodypart terms. It means that the object of the verb is parted or affected at its midpoint.
Kurungurr Example:
Wamanggal yungindi genket.
Chop this wallaby in half for me.
Kurungurr Example:
Yawurr ngebeny genket.
I chopped the tree in two.