2 Syllables: SU
abo, aro, Austro, auto, borrow, Bravo, Buenos, Caro, Cato, credo, follow, grotto, halo, hollow, lago, Malo, Mayo, morrow, Moscow, motto, mottoes, Otto, Paulo, Pedro, Pharaoh, Plato, Plato's, rainbow, Roscoe, scapegoat, sorrow, Stockholm, Strabo, swallow, topmost, waistcoats, wallow, Zeno
3 Syllables: USU
Apollo, Barbadoes, bravado, Chicago, Diego, Dorado, Horatio, Morocco, mulatto, octavo, Palazzo, potato, potatoes, Romano, soprano, staccato, tomatoes, tomorrow, tornado, volcano, volcanoes
4 Syllables: UUSU
5 Syllables: UUSUU
Found 63 words across 4 groupings. Skipped 1 excess word of a similar stem.