3 Syllables: SUU
Caucasus, commonest, lawlessness, moderates, novelist, oftenest, ominous, populace, populous, profitless, prophetess, proselytes, prosperous, sonorous, thoughtlessness
3 Syllables: USU
4 Syllables: USUU
Acropolis, anomalous, anonymous, autonomous, geologist, Herodotus, homologous, hypothesis, idolatrous, monotonous, nitrogenous, psychologist, rhinoceros, sarcophagus, synonymous, Theophilus
5 Syllables: UUSUU
Found 33 words across 4 groupings. Skipped 2 excess words of a similar stem.