commentitius
From LSJ
κακοὶ μάρτυρες ἀνθρώποισιν ὀφθαλμοὶ καὶ ὦτα βαρβάρους ψυχὰς ἐχόντων → eyes and ears are poor witnesses for men if their souls do not understand the language (Heraclitus Phil.: Fr. B 107; Testimonia: Fragment 16, line 6)
Latin > English
commentitius commentitia, commentitium ADJ :: invented, devised, improvised; imaginary; fabricated/fictitious; forged, false
Latin > French (Gaffiot 2016)
commentītĭus, c. commenticius.