For someone, something (actor -um-; s actor maN-) to accidentally crack something (patient -on), as for an earthquake to crack sheet rock; a person, a rice wine jar by dropping it; the sun to crack soil in drying.
mun'abhi extensively cracked.
bumhi; mamhi; mabhi
-um-: bumhi; ma-: mabhi; mun'a-: mun'abhi