Lewis Short
antŏnŏmăsĭa (noun F) = ἀντονομασία:
* A rhetorical figure, by which, instead of the name, an epithet of a person is employed (e. g. instead of Scipio, Eversor Carthaginis; instead of Achilles, Pelides; instead of Juno, Saturnia, etc.),Quint. 8, 6, 29; 8, 6, 43.
Charlton T. Lewis, Charles Short, A Latin Dictionary