2 Syllables: SU
adjunct, ambient, Anson, anthem, ashen, Ashton, aspen, Aston, Athens, Bantam, bastion, Brandon, cadmium, Camden, Canton, Canyon, Caspian, champion, chasm, craftsman, dampened, draughtsman, fashion, fasten, fathom, Franklin's, Gaston, Grafton, grandson, Hampden, Hampton, handsome, hangman, Hansen, Hanson, jasmine, javelin, Langdon, Latham, mansion, Masson, pageant, passion, phantom, plantain, rampant, random, ransom, ration, saffron, Sampson, Samson, sanction, sanctum, savants, spasm, Stanton, tandem, tangent, transient
3 Syllables: USU
abandon, advancement, assassin, attachment, Byzantium, commandment, companion, compassion, detachment, embankment, enchantment, enhancement, expansion, harassment, imagine, impassioned, Northampton, oldfashioned, potassium, Sebastian, Southampton
4 Syllables: UUSU
Found 83 words across 3 groupings. Skipped 34 excess words of a similar stem.