mentiens
From LSJ
τούτου δὲ συμβαίνοντος ἀναγκαῖον γίγνεσθαι πάροδον καὶ τροπὰς τῶν ἐνδεδεμένων ἄστρων → but if this were so, there would have to be passings and turnings of the fixed stars
Latin > English (Lewis & Short)
mentĭens: entis, Part., from mentior, q. v.
Latin > French (Gaffiot 2016)
mentĭēns, tis, part. de mentior || pris substt, le menteur (argument captieux, cf. ψευδόμενος) : Cic. Div. 2, 11.