2 Syllables: SU
biggest, bigot, billet, biscuit, bishops, Bridget, dearest, digit, drifted, fittest, frigate, frigid, gifted, hillock, lifted, limit, listed, millet, minute, minutest, nearest, Philip, pickets, pivot, richest, rigid, rivet, shifted, spirit, syrup, thickets, ticket, twisted, vivid, wicket
3 Syllables: USU
Archbishop, assisted, consisted, deliberate, elicits, exhibits, existed, explicit, illicit, implicit, inhibit, initiates, insisted, prohibit, resisted, severest, sincerest
Found 52 words across 2 groupings. Skipped 17 excess words of a similar stem.