2 Syllables: SU
3d, beastly, breezy, briefly, Ceres, cheaply, cheerfully, cheery, chiefly, clearly, creamy, dearly, decrease, deeply, dreamy, dreary, easy, eerie, Erie, feebly, fiercely, fieri, fleecy, freely, genie, greasy, greedy, Greeley, iri, leafy, leaky, levy, meekly, merely, nearly, neatly, needy, Nietzsche, Petri, Priestley, priestly, queried, queries, query, really, series, Siegfried, sleepy, specie, speedy, steeply, sweetly, theories, theory, treaty, weakly, wearied, weary, weekly, wiry, XLVIII, yearly
3 Syllables: USU
Assisi, completely, discreetly, entreaty, ideally, Luigi, machinery, Martini, Medici, naively, obliquely, Principe, severely, sincerely, uneasy, uniquely, unwearied
4 Syllables: UUSU
Found 81 words across 3 groupings. Skipped 1 excess word of a similar stem.