E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
Gratiano.
Brother of the Venetian senator, Brabantio. (Shakespeare: Othello.)
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Also a character in The Merchant of Venice, who talks an infinite deal of nothing, more than any man in all Venice. He is one of Bassanios friends, and when the latter marries Portia, Gratiano marries Nerissa, Portias maid.