mendacio
mendacio is a Latin form of mendacium, meaning “lie, falsehood”. It is the ablative singular neuter noun or dative singular neuter noun.
Found 77 times in the Latin texts on Socratos.
Where it is used
Caesar, De Bello Gallico 7.38.10: nuntios tota civitate Aeduorum dimittit, eodem mendacio de caede equitum et principum permovet; hortatur ut simili ratione atque ipse fecerit suas iniurias persequantur.
Plautus, Bacchides 4.9.968: eum ego ádeo uno mendácio devíci, uno ictu extémpulo
All forms of mendacium (declension table)
Source: Socratos (socratos.org), a free reader for Ancient Greek and Latin. Grammar from the Perseus Treebank and Morpheus; dictionary entries from Lewis & Short, A Latin Dictionary (Perseus Digital Library, CC BY-SA). Counts are from the texts on Socratos.