2 Syllables: SU
areas, barest, carriage, chariots, fairness, ferrous, heiress, merest, rarest, sheriff, tariff, terrace, terras, various
3 Syllables: USU
awareness, calcareous, embarrass, gregarious, hilarious, miscarriage, nefarious, precarious, vicarious
4 Syllables: UUSU
Found 24 words across 3 groupings. Skipped 5 excess words of a similar stem.