ECHO, a mountain-nymph, employed by Jupiter to baffle and mislead Juno, while he himself sported with her sister Oreades among the glades of Boeotia. As soon as Juno discovered the deception, she punished the nymph by changing her into an echo. In this condition she became enamoured of Narcissus; and when that youth failed to return her love, she pined away, till at length nothing remained of her but her voice.