[ora.tion] n [L oration-, oratio speech, oration, fr. orare to plead, speak, pray; akin to Hitt ariya- to consult an oracle and perh. to Gk ara prayer] (1502): an elaborate discourse delivered in a formal and dignified manner
ORATION
Meaning of ORATION in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012