Ethyl rhymes with:
bethel, bethell, ethel, grethel, methyl, pethel, pethtel, barthel, benthall, bethel, bethell, bothell, brothel, cathell, ethel, freudenthal, grethel, laubenthal, lethal, lilienthal, loewenthal, lowenthal, methyl, nonlethal, odenthal, pethel, pethtel, raithel, rathel, ruppenthal, southall, walthall
Ethyl sounds like:
edel, edell, edley, eitel, ethel, ethyol