Or search: avid, greedy, hungry, envious, jealous, thirsty, athirst, aspirant, aspiring, desirous, esurient, appetent, ambitious, devouring, nostalgic
2 Syllables: SU
blissful, bristle, Bristol, chisel, civil, crystal, dismal, distal, fiscal, grizzled, Israel, Israel's, Michel, missile, Mitchell, pistol, rivalled, shrivelled, swivel, thistle, trivial, vigil, whistle, wistful
3 Syllables: USU
baptismal, convivial, dismissal, epistle, initial, judicial, official, peripheral
4 Syllables: UUSU
artificial, beneficial, interstitial, prejudicial, sacrificial, superficial, unofficial

Found 39 words across 3 groupings. Skipped 12 excess words of a similar stem.