Or search: ado, din, hie, fuss, stir, flurry, hasten, hustle, ruckus, tumult, rumpus, ruction, commotion, framework
2 Syllables: SU
Brussels, bubble, buckle, chuckle, couple, cudgel, double, funnel, hovel, huddle, hustle, knuckle, Lovell, muddle, muffled, muscle, muzzle, puddle, puzzle, rubble, ruffle, Russel, Russell, Russell's, rustle, scuffle, shovel, shuffle, shuttle, smuggle, squirrel, struggle, stubble, subtile, subtle, supple, trouble, tunnel
3 Syllables: USU
disgruntled, distrustful, industrial, rebuttal, redoubled, referral, unruffled, untroubled

Found 46 words across 2 groupings. Skipped 30 excess words of a similar stem.