Or search: jam, lug, nub, pad, ram, tan, wad, atom, bunk, cant, clog, core, cork, cram, floc
1 Syllable: S
2 Syllables: SU
2 Syllables: US
3 Syllables: UUS

Found 130 words across 4 groupings. Skipped 36 excess words of a similar stem.