illusio
From LSJ
τούτων γάρ ἑκάτερον κοινῷ ὀνόματι προσαγορεύεται ζῷον, καί ὁ λόγος δέ τῆς οὐσίας ὁ αὐτός → and these are univocally so named, inasmuch as not only the name, but also the definition, is the same in both cases (Aristotle, Categoriae 1a8-10)
Latin > English (Lewis & Short)
illūsĭo: (inl-), ōnis, f. illudo,
I a mocking, jeering; irony, a figure of speech, = derisio, insultatio, Cic. de Or. 3, 53, 202; also ap. Quint. 9, 1, 28; cf. id. 8, 6, 54.—
II An illusion, deceit (eccl. Lat.), Vulg. Psa. 37, 7; Isa. 66, 4.
Latin > French (Gaffiot 2016)
illūsiō (inl-), ōnis, f. (illudo), ironie : [fig. de rhét.] : Cic. de Or. 3, 202 || illusion, tromperie : Eccl.