Showing results for "posterior" instead. (You can only search for 1 word at a time unless you use the Storm or Mosaic Rhyme tools)
Or search: bum, buns, butt, hind, rear, rump, tail, tush, prat, stern, tooth, torso, trunk, nates, caudal
2 Syllables: SU
clearer, dearer, fiercer, hearer, mirror, nearer
3 Syllables: USU
anterior, exterior, inferior, interior, superior, ulterior

Found 12 words across 2 groupings. Skipped 6 excess words of a similar stem.