2 Syllables: SU
bristle, Bristol, brittle, chisel, civil, cripple, crystal, Cyril, distal, fickle, fiddle, fiscal, fitful, giggle, grizzled, little, Michel, middle, missile, Mitchell, nibble, Nichols, nickel, nipple, pickle, pistol, quibble, riddle, ripple, rivalled, scribbled, shrivelled, Sibyl, sickle, signal, signalled, signals, swivel, thistle, tickle, tittle, trickle, triple, vigil, virile, vitriol, Whipple, whistle
3 Syllables: USU
4 Syllables: UUSU
Found 64 words across 3 groupings. Skipped 24 excess words of a similar stem.