Antonomasia ::
Antonomasia (n.) The use of some
epithet or the name of some
office, dignity, or the like,
instead of the
proper name of the
person; as when his
majesty is used for a king, or when,
instead of
Aristotle, we say, the
philosopher; or,
conversely, the use of a
proper name
instead of an
appellative, as when a wise man is
called a
Solomon, or an
eminent orator a
Cicero..