2 Syllables: SU
arrow, barrow, bello, bellow, echo, eco, fellow, ferro, frescoes, ghetto, greco, marrow, meadow, mellow, memo, narrow, nemo, pharaoh, pueblo, sparrow, threshold, vero, yellow
3 Syllables: USU
4 Syllables: UUSU
Found 28 words across 3 groupings. Skipped 1 excess word of a similar stem.