orison(n = noun.communication) petition, prayer - reverent petition to a deity; Array
is a kind of asking, request
has particulars: prayer wheel, benediction, blessing, collect, commination, deprecation, blessing, grace, thanksgiving, intercession, invocation, supplication, requiescat

   A prayer; a supplication. Chaucer. Shak. [1913 Webster]
"Lowly they bowed, adoring, and began
Their orisons, each morning duly paid." [1913 Webster]

orison, n. (usu. in pl.) archaic a prayer.

Etymology:
ME f. AF ureison, OF oreison f. L (as ORATION)

N  request, requisition, claim, petition, suit, prayer, begging letter, round robin, motion, overture, application, canvass, address, appeal, apostrophe, imprecation, rogation, proposal, proposition, orison, incantation, mendicancy, asking, begging, postulation, solicitation, invitation, entreaty, importunity, supplication, instance, impetration, imploration, obsecration, obtestation, invocation, interpellation, requesting, precatory, suppliant, supplicant, supplicatory, postulant, obsecratory, importunate, clamorous, urgent, cap in hand, on one's knees, on one's bended knees, on one's marrowbones, prithee, do, please, pray, be so good as, be good enough, have the goodness, vouchsafe, will you, I pray thee, if you please, Int, for God's sake!, for heaven's sake!, for goodness' sake!, for mercy's sake!, Dieu vous garde, dirigenos Domine, would you be so kind as to.

N  worship, adoration, devotion, aspiration, homage, service, humiliation, kneeling, genuflection, prostration, prayer, invocation, supplication, rogation, intercession, orison, holy breathing, petition, collect, litany, Lord's prayer, paternoster, beadroll, latria, dulia, hyperdulia, vigils, revival, cult, anxious meeting, camp meeting, ebenezer, virginal, thanksgiving, giving thanks, returning thanks, grace, praise, glorification, benediction, doxology, hosanna, hallelujah, allelujah, Te Deum, non nobis Domine, nunc dimittis, paean, benschen, Ave Maria, O Salutaris, Sanctus, The Annunciation, Tersanctus, Trisagion, psalm, psalmody, hymn, plain song, chant, chaunt, response, anthem, motet, antiphon, antiphony, oblation, sacrifice, incense, libation, burnt offering, heave offering, votive offering, offertory, discipline, self-discipline, self-examination, self-denial, fasting, divine service, office, duty, exercises, morning prayer, mass, matins, evensong, vespers, undernsong, tierce, holyday, worshipper, congregation, communicant, celebrant, worshipping, devout, devotional, reverent, pure, solemn, fervid, Int, hallelujah, allelujah!, hosanna!, glory be to God!, O Lord!, pray God that!, God grant, God bless, God save, God forbid!, sursum corda, making their lives a prayer, ora et labora, prayers ardent open heaven.