genericism
/dʒɪˈnɛrɪsɪz(ə)m/rare before late 20th cent
noun
The quality or state of being generic; concentration on a generic style or approach; (in early use) specifically the use of words to apply generically.
Origin
Mid 19th century; earliest use found in George Faber (1773–1854), Church of England clergyman and religious writer. From generic + -ism.