1 Syllable: S
2 Syllables: SU
Bunsen, Bunyan, button, cousin, Covent, Cullen, currants, currents, custom, dozen, Drummond, drunken, Duncan, dungeon, Durham, Dutton, flooded, function, glutton, hubbub, humdrum, hunted, huntsman, Hutton, junction, Justin, London, London's, luncheon, mutton, onion, oven, Prussian, pumpkins, pungent, roughened, rugged, Russian, rusted, Rutland, shrunken, someone, someone's, sudden, sullen, summon, sunken, Sutton, tungsten, Tuscan, twopence, unction, upland, urine
2 Syllables: US
3 Syllables: USU
abundance, abundant, accustom, assumption, Augustan, circumference, Columbian, compunction, concurrence, concurrent, concussion, conjunction, consumption, discussion, disgusted, distrusted, encouraged, encumbrance, escutcheon, Etruscan, incumbent, incumbrance, injunction, occurrence, percussion, presumption, recumbent, recurrence, recurrent, redundant, resumption, transference, triumphant
4 Syllables: UUSU
5 Syllables: UUUSU
Found 93 words across 6 groupings. Skipped 23 excess words of a similar stem.