The Collaborative International Dictionary of English v.0.48:

Entreaty \En*treat"y\, n.; pl. Entreaties.
   1. Treatment; reception; entertainment. [Obs.] --B. Jonson.
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   2. The act of entreating or beseeching; urgent prayer;
      earnest petition; pressing solicitation.
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            Fair entreaty, and sweet blandishment. --Spenser.

   Syn: Solicitation; request; suit; supplication; importunity.
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