mendācĭlŏquus, a, um, adj. [mendacium-loquor],
false-speaking, lying, mendacious (ante- and post-class.): nihil est stolidius, Neque mendaciloquius, Plaut. Trin. 1, 2, 163.—As subst.: mendācĭlŏquus , i, m., a liar : mendaciloquorum doctrinae, Tert. adv. Psych. 2.