- -ar [ər][< ME -er < OFr -er, -ier, -air < L -aris; or directly < L -aris; also < L -arius, a suffix of nouns of agency] suffix1. forming adjectives of, relating to, like, of the nature of [singular, polar]2. forming nouns the agent of a particular action [registrar]3. [modeled on SCHOLAR, etc.]-ER
English World dictionary. V. Neufeldt. 2014.