Webster's Revised Unabridged Dictionary · 1913

Orison

Orison , noun

[Old French orison, oreson, oreison, French oraison, from Latin oratio speech, prayer. See Oration.]

A prayer; a supplication. [Poetic] — Chaucer. Shak
Lowly they bowed, adoring, and began Their orisons, each morning duly paid. — Milton