Save Type Surname (from occupation, from nickname & ornamental) Usage German, Jewish Pronounced Pron. /ˈflaʊ̯m/(German) [ˈpflaʊ̯m](German) [key·simplify] Other Forms FormsPlum (Americanized); Pflum, Pflaumer Meaning & History metonymic occupational name or possibly a nickname from Middle High German pflūme, German pflaume "plum", as a Jewish name it is artificial. Cognate of Plum.