BACKER
NOUNS, PERSON
1768 ► PART-TAKER a backer; a supporter; a partisan; an ally → Sc.
1922 ► BANKER a person who financially backs a robbery, confidence game, or gambling operation → criminals’ sl.
1930 ► BANKROLLER a person who provides the funding for an enterprise, project, etc. → colloq., orig. US
1930 ► BANKROLL GUY → BANKROLL MAN a person who provides the funding for an enterprise, project, etc. → colloq., orig. US
Lexicophilia 