2 Syllables: SU
actual, agile, axial, axle, baffle, bashful, Basil, Basle, capsule, Cassel, castle, cavil, dazzle, facile, fragile, gravel, national, natural, Paschal, rascal, rational, scaffold, tactful, tassel, travel, travelled, travels, vassal, wrathful
3 Syllables: USU
Found 30 words across 2 groupings. Skipped 11 excess words of a similar stem.