(n.) The quality of being importunate; pressing or pertinacious solicitation; urgent request; incessant or frequent application; troublesome pertinacity.

blandishment buttonholing cajolement cajolery coaxing demandingness dunning exigency importunacy importunateness insistence nagging persistence pertinaciousness pertinacity pestering plaguing plying pressing pressingness pressure teasing urgency urging wheedling