OBSECRATION
Source: 566, 567
obsecration. Obsecration, n. an entreaty, supplication, prayer
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Ob′se‐cra″tion (–krā″shŭn), n. [[L. obsecratio: cf. F. obsecration.]] 1. 1. The act of obsecrating or imploring; as, the obsecrations of the Litany, being those clauses beginning with “By.” Bp. Stillingfeet. Shipley.
2. 2. (Rhet.) A figure of speech in which the orator implores the assistance of God or man.