noun, feminine/ɔ.ʁɛ.zɔ̃/plural: oraisons
oraison is feminine in French.
oration; orison, meditative prayer
Inherited from Middle French oraison, from Old French oroison et al., from Latin orātiōnem, whence also English oration. The word, especially in the sense of "oration", may have been a very early borrowing into French in the Middle Ages as the other Romance cognates are borrowed learned terms as well.