Definition of autonomasia in English:

autonomasia

noun

rare
  • Antonomasia; (sometimes) specifically the substitution of a common noun for a proper name.

Origin

Early 19th century; earliest use found in British Critic. Apparently from ancient Greek αὐτός self + ὀνομασία.

Pronunciation

autonomasia

/ˌɔːtənəˈmeɪzɪə/