2 Syllables: SU
breakfast, chariots, deadliest, dexterous, Eliot's, extras, fairness, headless, heaviest, lettuce, necklace, nexus, plexus, readiest, reckless, redness, sexes, Texas, various, wreckage
3 Syllables: SUU
3 Syllables: USU
awareness, calcareous, correctness, directness, gregarious, hilarious, infectious, nefarious, precarious, prospectus, unfairness, vicarious
4 Syllables: UUSU
Found 35 words across 4 groupings. Skipped 1 excess word of a similar stem.