Definition of antonomasia
: the use of a proper name to designate a member of a class (as a Solomon for a wise ruler); also : the use of an epithet or title in place of a proper name (as the Bard for Shakespeare)
Origin of antonomasia
Latin, use of an epithet for a proper name, from Greek, from antonomazein to call by a new name, from anti- + onomazein to name, from onoma name — more at name
First Known Use: circa 1550
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