Or search: emit, nymph, utter, analog, cuckoo, parrot, recite, reecho, resound, analogue, resemble, imitation, reproduce, echolalia, reflexion
2 Syllables: SU
arrows, barrows, bedclothes, bellows, echo, eco, fellows, frescoes, ghetto, Greco, meadow, narrows, petrol, Pharaohs, Pueblo, sparrows, yellows
3 Syllables: USU
electro, electrode, Pietro

Found 20 words across 2 groupings. Skipped 4 excess words of a similar stem.