2 Syllables: SU
0, arrow, barrow, bedclothes, bello, bellow, credo, creole, deo, depot, echo, echoes, ego, fellow, ferro, freehold, fresco, geo, ghetto, greco, guido, hero, ito, keyhole, keynote, keystone, kino, leo, lino, marrow, meadow, mellow, memo, narrow, negro, nemo, neo, nero, petrol, pharaoh, philo, primo, pueblo, rico, rio, seacoast, sparrow, steamboat, theo, threefold, trio, vero, veto, vivo, yellow, zero
3 Syllables: USU
amino, casino, electro, electrode, francesco, janeiro, marino, mosquito, mosquitoes, othello, pietro, shapiro, toledo, torpedo
4 Syllables: UUSU
Found 74 words across 3 groupings. Skipped 6 excess words of a similar stem.