2 Syllables: SU
absence, absent, action, acton, adam, ashton, atom, axioms, bastion, baton, blacken, bracken, cabin, cadmium, captain, caption, chaplain, chapman, chatham, craftsman, datum, dragon, draughtsman, faction, fatten, flatten, flaxen, fraction, fragment, gladden, grafton, hadrian, happen, hatton, jackson, jackson's, kaplan, latin, madam, madame, madden, madmen, magnum, matin, mation, maxim, patent, patton, platinum, saddened, satin, saxon, slacken, stagnant, staten, stratton, stratum, traction, waggon, wagon, waxen
3 Syllables: USU
abstraction, attachment, attraction, combatant, contraction, detachment, detraction, diffraction, distraction, enactment, exaction, extraction, inaction, infraction, manhattan, misshapen, potassium, reaction, refraction, retraction, sebastian, subtraction, transaction
4 Syllables: UUSU
5 Syllables: UUUSU
Found 90 words across 4 groupings. Skipped 42 excess words of a similar stem.