2 Syllables: SU
almond, aren, auckland, austin, autumn, awesome, blossom, boston, bottom, brabant, broaden, caution, cochrane, column, commons, compton, conference, conscience, constance, constant, convent, cotton, dawson, falkland, fallen, foreign, gotten, holland, houghton, johnson, johnson's, johnston, jonson, lawson, longman, nostrand, nostrum, often, omnium, pollen, problem, province, quadrant, quantum, robin, rostrum, rotten, scotland, sodden, sodom, soften, solemn, sovereign, squadron, stalin, taunton, thompson, thompson's, thomson, thomson's, trodden, wanton
3 Syllables: USU
befallen, despondent, downtrodden, forgotten, inconstant, precaution, preponderance, remonstrance, respondent, uncommon, untrodden, wisconsin
4 Syllables: UUSU
Found 76 words across 3 groupings. Skipped 22 excess words of a similar stem.