Or search: plight, dilemma, perplexity, predicament
2 Syllables: SU
ami, ani, balmy, Bonnie, bonny, brawny, calmly, concrete, Congreve, Conti, donkey, fondly, Gandhi, jaunty, Johnny, laundry, mani, Monte, omni, palmy, Pompey, promptly, strongly, swampy, tawny, Tommy, wrongly
3 Syllables: SUU
consciously, constancy, constantly, Conversely, Lombardy, quantity, wantonly, wrongfully
3 Syllables: USU
Giovanni
4 Syllables: USUU
demonstrably, despondency, inconstancy, subconsciously, unconsciously
5 Syllables: UUSUU
horizontally

Found 42 words across 5 groupings. Skipped 1 excess word of a similar stem.