aptronym - definition and synonyms

noun [countable] linguistics  /ˈæptrənɪm/
singularaptronym
pluralaptronyms
singularaptonym
pluralaptonyms

or aptonym  /ˈæptənɪm/

  1. a person's name that is appropriate to their job, for example if a judge has the surname Judge or a baker is called Bunn