2 Syllables: SU
beaded, ceded, cheated, clearest, edict, Egypt, feasted, Felix, freest, Friedrich, greeted, heated, heeded, helix, kneaded, Leibnitz, lyric, meted, needed, Phoenix, pleaded, prefix, realist, scenic, seated, secret, shielded, speeded, spirit, steamship, treated, weeded, wielded, yielded
3 Syllables: USU
acceded, acetic, albeit, collegiate, competed, completed, conceded, defeated, depleted, entreated, exceeded, extremist, idealist, impeded, maltreated, preceded, proceeded, receded, repeated, retreated, satiric, seceded, strategic, succeeded, unheeded, untreated
3 Syllables: UUS
4 Syllables: UUSU
Found 64 words across 4 groupings. Skipped 8 excess words of a similar stem.