Made a sound repeat or bounce back off a surface, or repeated something someone else said.
From Old French 'echo' and ultimately Greek 'ekho' (sound). The word traveled through Latin into Romance languages, with the modern English form solidifying in the 14th century.
Echoes were so mysterious to ancient people that they created the myth of Echo, a nymph cursed to only repeat others' words—literally personifying this acoustic phenomenon in Greek mythology.
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