2 Syllables: SU
bucket, budget, burnished, churches, churlish, couplet, courage, curses, Curtis, doublet, druggist, earnest, Ernest, flourish, furnish, furtive, girlish, justice, luscious, merges, nourish, nurses, perches, public, publick, public's, publish, punish, puppet, purges, purplish, purses, rubbish, russet, rustic, scourges, searches, service, skirmish, sluggish, suffix, summit, surfaced, surges, Sussex, Turkish, uplift, urges, verses, worketh
3 Syllables: SUU
3 Syllables: USU
assertive, coercive, discourage, discursive, encourage, injustice, Republic, republished, researches, reverses, subversive, unpublished, unpunished
Found 64 words across 3 groupings. Skipped 12 excess words of a similar stem.