1 Syllable: S
Deus
2 Syllables: SU
aegis, beaches, beacons, beatings, beeches, beings, breaches, breezes, briefest, ceaseless, ceases, ceilings, cheapest, cheapness, cheeses, chiefest, clearings, cleavage, creases, deacons, dealings, deepens, deepest, demons, devious, earrings, eases, easiest, Edith, eras, feelings, fetus, fiendish, foetus, freedoms, Freeman's, freest, freezes, genius, genus, gleanings, greenish, Greenwich, greetings, grievous, hearings, heathens, heedless, Jesus, keenest, keenness, leafless, leanings, leases, leeches, legions, lesions, meanest, meanings, meanness, meekness, meetings, museums, neatness, needless, nieces, peaches, peerage, peevish, penis, pieces, pleadings, pleases, preaches, previous, priestess, reaches, readings, realism, realist, reasons, rebus, regions, Regis, Rhenish, seamless, seasons, seedlings, seemeth, seizes, sieges, sleepless, speaketh, specious, speeches, speechless, steepness, Stephens, Stevens, Swedish, sweetest, sweetness, syringe, teaches, teachings, tedious, theorems, Theseus, thesis, treatise, treeless, venous, Venus, weakens, weakest, weakness, zenith
2 Syllables: US
3 Syllables: SUU
3 Syllables: USU
abstemious, accretions, adhesive, arenas, Aurelius, caprices, cohesive, completeness, Cornelius, diseases, Dominus, egregious, Ephesians, Eusebius, extremest, extremist, facetious, idealist, ingenious, Josephus, Lucretius, machinist, Norwegians, obsequious, Phoenicians, prestigious, proceedings, Prometheus, releases, secretions, uncleanness, uniqueness, Venetians
3 Syllables: UUS
4 Syllables: UUSU
5 Syllables: UUUSU
Found 163 words across 8 groupings. Skipped 5 excess words of a similar stem.