Or search: bud, pop, shy, jump, alpha, blaze, bulge, crank, debut, erupt, onset, sport, wince, scrum, boggle
2 Syllables: SU
Arctic, bargained, Bartlett, carpet, carted, Charlotte, charted, darkened, darted, garland, garlic, Garnet, guarded, hardened, hardship, harlot, hearted, Margaret, Margaret's, market, pardoned, parted, scarlet, sharpened, target, yardstick
3 Syllables: USU
Antarctic, bombarded, departed, discarded, disheartened, imparted, incarnate, lethargic, regarded, retarded, uncharted, unguarded
4 Syllables: UUSU
disregarded

Found 39 words across 3 groupings. Skipped 5 excess words of a similar stem.