Or search: ply, baby, cater, humor, spoil, spree, coddle, cosset, humour, pamper, wallow, consume, deplete, exhaust, gratify
2 Syllables: SU
pulses, Ulrich
3 Syllables: SUU
impulses
3 Syllables: USU
compulsive, convulsive, impulsive, repulsive

Found 7 words across 3 groupings.