The Collaborative International Dictionary of English v.0.48:
Beseeching \Be*seech"ing\, a. Entreating urgently; imploring; as, a beseeching look. -- Be*seech"ing*ly, adv. -- Be*seech"ing*ness, n. [1913 Webster]WordNet (r) 3.0 (2006):
beseechingly adv 1: in a beseeching manner; "`You must help me,' she said imploringly" [syn: beseechingly, importunately, imploringly, pleadingly, entreatingly]