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orison

/ˈɒɹɪsən/ noun

Latin root: ōrātiō Wiktionary

Origin

From Middle English orisoun, from Anglo-Norman oreison, oresoun etc. and Old French oraisun etc., from Latin ōrātiō, ōrātiōnem (“discourse, prayer”) (whence also English oration).

From Wiktionary, via Kaikki.org (CC BY-SA)