Here's what rhymes with protophonemes.
phonemes Words that almost rhyme with protophonemes
phoneys ponies coneys hoagies cronies baronies toadies dogies roadies cozies homeys moseys neuroses trophies snowfields jalopies trollies toasties ceremonies testimonies anchovies somebodies homebodies bluenoses macaronies diagnoses goldfields prognoses cosmogonies patrimonies hypertrophies physiognomies misdiagnoses