retronym

/rəˈtrəʊ.nɪm//rəˈtroʊ.nɪm/

前缀

后缀

retro-: Back or backward. · Behind.
-onym: A combining form meaning “word” or “name”, used in terms that denote a particular kind of word or name.

From retro- +‎ -onym; coined by Frank Mankiewicz and popularized by William Safire.

1(linguistics) A new word or phrase coined for an old object or concept whose original name has become used for something else or is no longer unique, or which did not originally have a specific name. [from 1980s]