2 Syllables: SU
adam, adjunct, albion, album, allan, allen, allen's, alum, ammon, annum, arrant, ashen, aspen, aston, athens, atom, balance, baron, barren, baton, blacken, bracken, cabin, calcium, calvin, cannon, canon, caspian, challenge, chaplain, chasm, chatham, datum, dragon, falcon, famine, fashion, fasten, fathom, fatten, flatten, gallant, gallon, gaston, gladden, halcyon, hallam, hammond, happen, hatton, javelin, kaplan, latham, latin, madam, madame, madden, malcolm, mammon, masson, matin, pageant, passion, patent, patton, phantom, ration, saddened, saffron, salmon, satin, savants, shannon, sharon, slacken, spasm, stallion, staten, stratton, stratum, talent, talons, valiant, waggon, wagon
3 Syllables: USU
amalgam, assassin, battalion, buchanan, combatant, compassion, examined, examines, harassment, imagine, imbalance, impassioned, italian, manhattan, medallion, misshapen, oldfashioned, unbalanced
4 Syllables: UUSU
Found 104 words across 3 groupings. Skipped 46 excess words of a similar stem.