Ethyll \e-thy-ll\ as a girl's name is a variant of Ethel (Old English), and the meaning of Ethyll is "noble".
The baby name Ethyll sounds like Ethyl and Ethill. Other similar baby names are Ethille, Ethnee, Ethnea, Ethnah, Etoile, Bethell, Emyle, Ethlynn, Ethlyn, Ethlin, Ethelyn, Ethelin, Ethelda, Etha, Etel and Ehtel.