a formal public speech, especially one delivered on a special occasion, as on an anniversary, at a funeral, or at academic exercises.
2.
a public speech characterized by a studied or elevated style, diction, or delivery.
Origin: 1325–75;Middle Englishoracion < Latinōrātiōn- (stem of ōrātiō) speech, prayer, equivalent to ōrāt(us) (past participle of ōrāre to plead, derivative of ōr-, stem of ōs mouth) + -iōn--ion
late 14c., "prayer," from L.L. orationem (nom. oratio) "speaking, discourse, language, prayer," from L. oratus, pp. of orare (see orator). Meaning "formal speech, discourse" first recorded c.1500.