Progenitor rhymes with:
arbiter, auditor, barometer, brandstetter, branstetter, depositor, deruiter, exeter, glastetter, greditor, helmstetter, hemmeter, hostetter, karstetter, kerstetter, kiesewetter, klawitter, lassetter, leadbetter, non-sequitor, parmeter, photometer, rastetter, resetar, rossiter, sequitur, telemarketer, tensiometer