2 Syllables: SU
biscuit, Bishop, Bridget, busiest, digit, drifted, frigid, gifted, lifted, listed, pivot, rigid, rivet, shifted, twisted, vivid, Winthrop
3 Syllables: USU
Archbishop, assisted, consisted, elicits, existed, explicit, illicit, implicit, initiates, insisted, resisted
Found 28 words across 2 groupings. Skipped 6 excess words of a similar stem.