The Oxford Thesaurus An A-Z Dictionary of Synonyms - supplicationn.

1) entreaty, petition, prayer, appeal, pleading, plea, suit, solicitation, obsecration, obtestation, impetration: Heeding the pitiful supplications of the beggars, they gave them some money. 2) supplicating, begging, pleading, soliciting, petitioning, entreating, beseeching: All his supplication could not wring a farthing from the old skinflint.