2 Syllables: SU
absence, absent, action, Adam, atom, axiom, baton, blacken, bracken, cabin, cadmium, Captain, caption, chaplain, Chapman, Chatham, craftsman, datum, dragon, draughtsman, faction, fatten, flatten, flaxen, fraction, fragment, gladden, 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, attraction, combatant, contraction, detraction, diffraction, distraction, enactment, exaction, extraction, inaction, infraction, Manhattan, misshapen, reaction, refraction, retraction, subtraction, transaction
4 Syllables: UUSU
5 Syllables: UUUSU
Found 82 words across 4 groupings. Skipped 40 excess words of a similar stem.