Lewis & Short

Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.

mendācĭter, adv., v. mendax fin.

mendax, dācis, adj. [mentior], given to lying, mendacious; subst., a liar.

  1. I. Lit.: mendacem esse adversus aliquem, Plaut. Poen. 1, 2, 188: cum mendaci homini, ne verum quidem dicenti, credere soleamus, Cic. Div. 2, 71, 146: Carthaginienses fraudulenti et mendaces, id. Agr. 2, 35, 95: aretalogus, Juv. 15, 16.
    As subst.: mendax, dācis, m., a liar.
    Prov.: mendacem memorem esse oportet, a liar should have a good memory, Quint. 4, 2, 91.
    Comp.: Parthis mendacior, Hor. Ep 2, 1, 112.
    Sup.: mendacissimus, the greatest liar, Plaut. Rud. 3, 4, 48.
    With gen.: si hujus rei me mendacem esse inveneris, Plaut. As. 5, 2, 4.
    With dat.: saepe fui mendax pro te mihi, Ov. H. 2, 11.
    With in and acc.: in parentem, Hor. C. 3, 11, 35; for which adversum, Plaut. Poen. 1, 2, 188.
    With in and abl.: in tenui farragine, Pers. 5, 77.
  2. II. Transf., of inanim, and abstr. things, lying, false, deceptive; feigned, fictitious, counterfeit, not real, etc. (mostly poet.): mendacia visa, Cic. Div. 2, 62, 127: speculum, Ov. Tr. 3, 7, 38: fundus, that does not yield the expected fruits, Hor. C. 3, 1, 30: damnum, Ov. A. A. 1, 431: infamia, Hor. Ep. 1, 16, 39: os, Tib. 3, 6, 35: pennae, Ov. M. 10, 159: quidquid Graecia mendax audet in historia, Juv. 10, 174.
    Hence, adv.: mendācĭter, falsely, mendaciously (post-class.): praedicare, Sol. 1, 87.
    Sup.: mendacissime dicere, Aug. Mor. Eccl. 1, 17.