2 Syllables: SU
adam, adjunct, alan, allan, allen, allen's, alum, ammon, annum, arrant, ashen, ashton, aspen, aston, athens, atom, balance, baron, barren, bastion, baton, blacken, bracken, cabin, cannon, canon, caspian, challenge, chaplain, chasm, chatham, craftsman, datum, dragon, draughtsman, famine, fashion, fasten, fathom, fatten, flatten, gallant, gallon, gaston, gladden, grafton, hallam, hammond, happen, hatton, jasmine, javelin, kaplan, latham, latin, madam, madame, madden, mammon, masson, matin, pageant, passion, patent, patton, phantom, ration, saddened, saffron, salmon, satin, savants, shannon, sharon, slacken, spasms, staten, stratton, stratum, talent, talons, waggon, wagon
3 Syllables: USU
assassin, attachment, buchanan, combatant, compassion, detachment, examined, examines, harassment, imagine, imbalance, impassioned, manhattan, misshapen, oldfashioned, potassium, sebastian, unbalanced
4 Syllables: UUSU
Found 102 words across 3 groupings. Skipped 46 excess words of a similar stem.