2 Syllables: SU
beaches, beeches, breaches, breezes, ceaseless, ceases, cheeses, cleavage, creases, eases, Edith, fiendish, freest, freezes, greenish, Greenwich, heedless, leakage, leases, leeches, meekness, nieces, peaches, peevish, penis, pieces, pleases, preaches, reaches, realism, realist, Regis, Rhenish, seemeth, seizes, sieges, speeches, Swedish, teaches, thesis, zenith
3 Syllables: SUU
3 Syllables: USU
3 Syllables: UUS
4 Syllables: UUSU
Found 52 words across 5 groupings. Skipped 1 excess word of a similar stem.