2 Syllables: SU
blooded, bucket, budget, buffet, buttocks, buttressed, couplet, covet, doublet, druggist, dullest, flooded, flourished, glutted, hubbub, Ludwig, musket, nourished, public, publick, public's, published, punished, puppet, roughest, rugged, russet, rustic, stirrup, stomach, studded, subject, suffix, Suffolk, summit, Sussex, syrup, toughest, turret, uplift
3 Syllables: USU
conducted, constructed, corrupted, deducted, disrupted, erupted, inducted, instructed, obstructed, republics, republished, rivulets, unpublished, unpunished
4 Syllables: UUSU
5 Syllables: UUUSU
Found 60 words across 4 groupings. Skipped 12 excess words of a similar stem.