proloquium
From LSJ
οὗτος μὲν ὁ πιθανώτερος τῶν λόγων εἴρηται, δεῖ δὲ καὶ τὸν ἧσσον πιθανόν, ἐπεί γε δὴ λέγεται, ῥηθῆναι → this is the most credible of the stories told; but I must relate the less credible tale also, since they tell it
Latin > English (Lewis & Short)
prōlŏquĭum: ĭi, n. proloquor. *
I An introduction, preamble, Paul. ex Fest. p. 226 Müll.; v. prologium.—
II An assertion, proposition, axiom (class. Lat. pronunciatum), the Gr. ἀξίωμα, Varr. ap. Gell. 16, 8, 1; cf. App. Dogm. Plat. 3, p. 29, 15: disjunctivum, Gell. 5, 11, 9.—
III A judicial sentence: sub uno proloquio cunctos jubet occidi, Amm. 29, 1, 38; 28, 1, 11.