etiology

(US) = aetiology.

ethanol, ether, ethereal, ethereal (also aetherial), ethic, ethical, ethically, ethics, ethnic, ethnically, ethnographer, ethnographic, ethnography, ethnological, ethnologist, ethnology, ethos, ethyl alcohol, etiolate, etiolation, etiquette, etymological, etymologist, etymology, eucalyptus, eucharist, eugenics, eulogist, eulogistic, eulogize, eulogize, eulogise, eulogy, eunuch, euphemism, euphemistic, euphonious, euphonium, euphony, euphoria, euphoric,