Where does “э́хо” come from?

э́хо (Russian) comes from German Echo, from Latin echo, from Ancient Greek Ἠχώ, from Ancient Greek ἠχή, from Proto-Hellenic *wākʰā́.

Ancestry of “э́хо”, step by step

StepLanguageWordMeaning
1GermanEchoreflected sound, echo
2Latinechoecho
3Ancient GreekἨχώsound; a nymph in Greek mythology
4Ancient Greekἠχήsound, noise
5Proto-Hellenic*wākʰā́—

Words derived from “э́хо”

Every word from Proto-Hellenic *wākʰā́ →Every word from Ancient Greek ἠχή →Every word from Ancient Greek Ἠχώ →