nabobery

noun3

1. •
   The behaviour of a nabob (generally disparaging).
2. •
   Very wealthy people collectively (generally disparaging).

   • I refer to the talentless daughter of some rich man—the youthful feminine flower of Berlin Nabobry—who holds herself wonderfully gifted. — 1893
3. •
   A building frequented by nabobs or characteristic of a nabob.