Or search: fuss, spat, tiff, bicker, fracas, affray, dispute, quarrel, wrangle, squabble, bickering, altercation, pettifoggery
2 Syllables: SU
buckets, buffet, buttocks, buttressed, couplets, covet, dullest, musket, puppet, roughest, rusted, stirrup, stomach, Suffolk, summit, syrup, toughest, tufted, turret
2 Syllables: US
beloved
3 Syllables: USU
disgusted, distrusted, Republic, rivulets

Found 24 words across 3 groupings. Skipped 5 excess words of a similar stem.