3 Syllables: SUU
audiences, bottomless, Caucasus, commonest, lawlessness, moderates, novelist, oftenest, ominous, profitless, prophetess, proselytes, prosperous, rottenness, sonorous, thoughtlessness
3 Syllables: USU
4 Syllables: USUU
Acropolis, anomalous, anonymous, autonomous, geologist, Herodotus, homologous, hypothesis, idolatrous, metropolis, monotonous, nitrogenous, psychologist, rhinoceros, sarcophagus, synonymous, Theophilus
Found 34 words across 3 groupings. Skipped 2 excess words of a similar stem.