prooemior
From LSJ
τὸ δὲ ποιεῖν ἄνευ νοῦ ἃ δοκεῖ καὶ σὺ ὁμολογεῖς κακὸν εἶναι: ἢ οὔ → but doing what one thinks fit without intelligence is—as you yourself admit, do you not?—an evil
Latin > English (Lewis & Short)
prŏoemĭor: āri, v. dep. prooemium,
I to make an introduction or preface (postAug.): prooemiatur apte, Plin. Ep. 2, 3, 3; Sid. Ep. 4, 3.
Latin > French (Gaffiot 2016)
prŏœmĭor,¹⁶ ārī, intr., faire un exorde : Sid. Ep. 4, 3.
Latin > German (Georges)
prooemior, ārī (prooemium) = προοιμιάζομαι, eine Einleitung-, eine Vorrede machen, in der Rede, Plin. ep. 2, 3, 3. Dioscor. in Augustin. epist. 117 in. Sidon. epist. 4, 3, 2. Iul. Victor rhet. 15. p. 423, 14 H.
Latin > English
prooemior prooemiari, - V DEP :: make a prooemium/preface/introduction to a speech