2 Syllables: SU
biscuit, Bishop, Bridget, busiest, digit, drifted, frigid, gifted, idiot, lifted, listed, pivot, prettiest, rigid, rivet, shifted, swiftest, twisted, vivid
3 Syllables: USU
affiliate, Archbishop, assisted, consisted, elicits, existed, explicit, illicit, implicit, initiates, insisted, resisted
Found 31 words across 2 groupings. Skipped 7 excess words of a similar stem.