n ā, f. vn. of imm-esoirg act of exchanging blows; mutual smiting, mutual destruction: imesorguin .i. orguin cechtor na dā lethe, Corm. Y 740 . imeasorgain .i. orgain, no bualadh ar gach leath dhe, O'Cl. dias oc imessarcain do neoch as tressiu dont ṡlúag, LL 120b18 . robui cach dhibh oc imesarcain a cheli, RC xliii 46 § 45. batar ... ic immualad ocus ic imesarcain etorro, Cog. 76.8 . robtar iomdha a ndeabhtha ... a n-iomarubadh ┐ a n-imesorccain, AFM vi 2250.10 .