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mendum, i, n. [Sanscr. manāk, a little; mindā, a defect; cf.: mancus, mendicus], a fault, error, blunder in writing (class.). 
- I.  Lit.: quod mendum ista litura correxit? Cic. Verr. 2, 2, 42, § 104: librariorum, id. Att. 13, 23, 2.
 
- II.  Trop.: Idus Martiae magnum mendum continent, mistake, error, Cic Att. 14, 22, 2.
 
- B.  A blemish, defect, in the face, etc.: rara tamen mendo facies caret, Ov. A. A. 3, 261.