2 Syllables: SU
bloodless, buckets, bullets, bullocks, Burgess, buttocks, buttress, Church's, circus, couplets, courteous, curious, Curtis, Douglas, Duchess, dullest, earliest, Ernest, Europe's, firmest, firmness, fullest, furious, furnace, furthest, jurist, justice, Justus, kerchief, luckless, lustrous, muskets, nervous, nurses, oneness, Perseus, pumice, puppets, purchase, purest, purpose, roughest, service, spurious, sternest, sternness, stirrups, stomachs, surface, surges, surplus, toughest, tourist, troublous, turrets, urges, versus, worthiest, worthless
3 Syllables: USU
alertness, Augustus, encourage, Honduras, impervious, injurious, luxurious, reverses, rivulets, traverses
4 Syllables: UUSU
Found 71 words across 3 groupings. Skipped 6 excess words of a similar stem.