2 Syllables: SU
actual, adult, apple, axial, axle, babble, Babel, bashful, battle, capsule, cattle, chapel, chattel, crackle, grapple, jackal, national, paddle, prattle, rabble, rational, rattle, saddle, shackled, shackles, tackle, tactful
3 Syllables: USU
Found 29 words across 2 groupings. Skipped 17 excess words of a similar stem.