vbl. sb. Obs. [f. costn-en, COSTEN v.1 + -ING1.] Cost, expense.
c. 1205. Lay., 22547. Sixti scipen mid his aȝere costninge bringen heom to Londenne.
1340. Ayenb., 151. Hou me lyest þane time and costnigge uor to lyerni þing þet naȝt ne is worþ bote to ydele blisse.
