2 Syllables: SU
Ala, Ambrose, ana, Andrea, Anglia, Anglo, Anna, anno, ano, aqua, ara, arrow, Barrow, camera, Campo, Cana, canto, Castro, Clara, data, fallow, Franco, gala, gamma, ganglia, Glasgow, hallow, Hanna, Hannah, Harrow, Kappa, macro, mango, manna, Massa, narrow, Palo, Paso, Plaza, Sacra, sallow, sandstone, Santa, Santo, shadow, shallow, Stanhope, stanza, strata, tallow, Tasso
3 Syllables: USU
4 Syllables: UUSU
Alabama, Alexandra, Alexandria, Christiana, Colorado, Indiana, memoranda, overshadow, panorama, propaganda, Salamanca
5 Syllables: UUUSU

Found 90 words across 4 groupings. Skipped 1 excess word of a similar stem.