Sumpter rhymes with:
emptor, teleprompter, adapter, adaptor, adopter, apter, captor, chapter, emptor, eurocopter, helicopter, interceptor, kaptur, lithotripter, raptor, receptor, sceptre, sculptor, septer, subchapter, teleprompter, velociraptor
emptor, teleprompter, adapter, adaptor, adopter, apter, captor, chapter, emptor, eurocopter, helicopter, interceptor, kaptur, lithotripter, raptor, receptor, sceptre, sculptor, septer, subchapter, teleprompter, velociraptor