etherize /ˈiːθəɹaɪz/ verb2 •(historical) To anesthesize by means of ether (diethyl ether), often by inhalation.Let us go then, you and I, / When the evening is spread out against the sky / Like a patient etherized upon a table; […] — 1915 •To convert into ether. formsetherized · etherizing · etherizes