The story
- Proto-Italic*wre-
- Latinre-
- Old Frenchre-
- Middle Englishre-
- Englishre-
- Proto-Indo-European*sweh₂gʰ-
- Proto-Hellenic*wākʰā́
- Ancient Greekἠχή (ēkhḗ)
- Ancient Greekἠχώ (ēkhṓ)
- Latinēchō
- Medieval Latinēccō
- Middle Englisheccho
- Englishecho
- English todayreecho
Etymology from Wiktionary, CC BY-SA 4.0.