English

Noun

proper adjective ‎(plural proper adjectives)

1. (grammar) An adjective derived from a proper noun, such as British derived from Britain.
   • 1859, William Harvey Wells, A Grammar of the English Language: For the Use of Schools

     These two general classes of adjectives may also be divided into several others, of which the following are the most important: — 1. A proper adjective is one that is derived from a proper name; as, American . . .