Or search: tooth, angular, premolar
2 Syllables: SU
buffet, buttoned, covet, Drummond, flooded, hubbub, hunted, musket, roughened, rugged, rusted, Rutland, Suffolk, summoned, tufted, upland
2 Syllables: US
beloved
3 Syllables: USU
accustomed, disgusted, distrusted, encouraged
4 Syllables: UUSU
unaccustomed

Found 22 words across 4 groupings. Skipped 2 excess words of a similar stem.