Mĕro, ōnis, m. [merum],
the wine-bibber , a nickname bestowed on the emperor Tiberius Claudius Nero, in allusion to his drinking propensities: propter nimiam vini aviditatem, pro Tiberio Biberius, pro Claudio Caldius, pro Nerone Mero vocabatur, Suet. Tib. 42.
·add. ·noun Any of several large groupers of warm seas, ·esp. the guasa (Epinephelus guaza), the red...
Webster's Dictionary of the English Language