Showing results for "deaminase" instead. (You can only search for 1 word at a time unless you use the Storm or Mosaic Rhyme tools)
3 Syllables: SUU
aggravates, aggregates, animate, database, graduates
4 Syllables: USUU
contaminate, elaborates, evaporates, exaggerates

Found 9 words across 2 groupings. Skipped 1 excess word of a similar stem.