2 Syllables: SU
billion, brilliance, brilliant, children, children's, Cyprian, Dillon, Gideon, Hilton, idiom, ilium, Lillian, lithium, million, Milton, Miriam, miscreant, pilgrim, Scythian, silken, Simeon, sylvan, Syrian, villain, Vivian, William, Wilson, Wilson's, Wilton
3 Syllables: SUU
3 Syllables: USU
3 Syllables: UUS
4 Syllables: UUSU

Found 62 words across 5 groupings. Skipped 18 excess words of a similar stem.