2 Syllables: SU
beaded, ceded, cheated, edict, Egypt, feasted, Felix, greeted, heated, heeded, helix, kneaded, Leibnitz, meted, needed, Phoenix, pleaded, prefix, scenic, seated, shielded, speeded, steamship, treated, weeded, weekend, wielded, yielded
3 Syllables: USU
acceded, acetic, albeit, collegiate, competed, completed, conceded, defeated, depleted, entreated, exceeded, impeded, maltreated, preceded, proceeded, receded, repeated, retreated, seceded, strategic, succeeded, unheeded, untreated
4 Syllables: UUSU
5 Syllables: UUUSU
Found 54 words across 4 groupings. Skipped 3 excess words of a similar stem.