Orison

n.

1.

A prayer; a supplication. Lowly they bowed, adoring, and began Their orisons, each morning duly paid. - Milton.

Noun

1.

orison - reverent petition to a deity Synonyms: petition, prayer

Angelus, Ave, Ave Maria, Hail Mary, Kyrie Eleison, Paternoster, aid prayer, appeal, application, beadroll, beads, beseechment, bidding prayer, breviary, chaplet, collect, communion, contemplation, devotions, entreaty, grace, impetration, imploration, imprecation, intercession, invocation, litany, meditation, obsecration, obtestation, petition, plea, prayer, prayer wheel, rogation, rosary, silent prayer, suit, supplication, thanks, thanksgiving