1 Syllable: S
2 Syllables: SU
boatman, Bolton, bonum, Bowen, Bowman, broken, button, chosen, chromium, cloven, coachman, cogent, Cohen, Coleman, colon, Corinth, cousin, Covent, Cullen, currants, currents, custom, dozen, Drummond, Durham, Dutchman, Dutton, Florence, foreign, forum, frozen, glutton, golden, Goldman, holden, homespun, husband, Hutton, judgement, judgment, Justin, Laurence, Laurent, Lawrence, loathsome, Logan, lonesome, modem, molten, moment, motion, Muslim, muslin, mutton, notion, oaken, Oakland, ocean, odium, olden, Olson, omen, open, opium, orange, oven, Owen, poem, Poland, postman, potent, potion, Provence, Prussian, quorum, quotient, rodents, Roland, Roman, Rosen, roughened, Rowan, Rowland, ruffian, Russian, Rutland, slogan, sodium, Solon, spoken, spokesman, stolen, sudden, sullen, summon, Sutton, swollen, token, torrent, totem, Trojan, Tuscan, twopence, upland, urine, warrant, Warren, wholesome, woven, yeoman, yeomen
3 Syllables: SUU
3 Syllables: USU
abhorrence, abhorrent, accustom, adjustment, ammonium, atonement, Augustan, beholden, betokened, combustion, commotion, component, concurrence, concurrent, concussion, condolence, corrosion, custodian, decorum, devotion, discussion, emboldened, encomium, encroachment, enrollment, enrolment, erosion, escutcheon, Etruscan, eulogium, explosion, exponents, Ionian, Mongolian, Napoleon, Napoleon's, Newtonian, occurrence, opponent, outspoken, percussion, petroleum, postponement, promotion, proponents, readjustment, recurrence, recurrent, reopen, Smithsonian, Symposium, theologian, transference, unbroken, unopened, unspoken, unwholesome, Utopian
4 Syllables: UUSU
Found 180 words across 5 groupings. Skipped 52 excess words of a similar stem.