deonym

noun2

1. •
   A term which derives from a proper name (proper noun), such as brand name (genericized trademark), a given name or surname (eponym), or a place name (toponym).

   • […] increased occurrence of deonyms. Among them, nearly half come from trade names (company names, brand names or product names). This chapter aims to study deonyms deriving from trade names. — 2013
2. •
   Synonym of theonym.

   • It is a known fact that many Greek deonyms are not based [on] Hellenic roots (just as the oldest Sumerian place and river [name]s are neither Sumerian nor Semitic […] — 1979