Exceptions: Nouns masculine from their signification: as,
nauta, sailor. So a few family
or personal names: as, Múréna,
Dolábella, Scaevola[Scaevola is really a feminine adjective,
used as a noun, meaning little left hand; but, being used as the name of a man (originally a nickname), it became masculine.
Original genders are often thus changed by a change in the sense of a
noun.]; also , Hadria, the Adriatic.