Etymology · Proto-Indo-European
*h₂eydʰ-
4 English words descend from Proto-Indo-European *h₂eydʰ-, most common first.
- etherThe medium breathed by human beings; the air.
- etnaAny of several kind of spirit burners, lamps or stoves, especially portable; (later chiefly in attributive use).
- oastA kiln for drying tobacco, malt and especially hops.
- annealTo subject to great heat and then (often slow) cooling, and sometimes reheating and further cooling, for the purpose of rendering less brittle; to temper; to toughen.