2 Syllables: SU
ambient, Ammon, annum, Anson, anthem, bandaged, Bantam, Brandon, cadmium, Camden, candid, cannon, canon, Canton, Canyon, champion, dampened, famine, Franklin's, ganglion, grandson, granted, Hammond, Hampden, Hampton, handed, handsome, hangman, Hansen, Hanson, landed, Langdon, languid, Mammon, mansion, phantom, plantain, planted, rampant, random, ransom, salmon, Sampson, Samson, sanction, sanctum, Shannon, slanted, Stanton, stranded, tandem, tangent, transient
3 Syllables: USU
abandon, advancement, Buchanan, Byzantium, commandment, companion, demanded, embankment, enchantment, enhancement, examined, examines, expanded, expansion, Northampton, Southampton, supplanted
4 Syllables: UUSU
Found 73 words across 3 groupings. Skipped 19 excess words of a similar stem.