The story
- Proto-Indo-European*ten-
- Proto-Indo-European*tónos
- Proto-Hellenic*tónos
- Ancient Greekτόνος (tónos)
- Englishtono-
- EnglishExodus
- Englishtonogenesisinflu.
- English todaytonoexodus
From tono- + Exodus, by analogy with tonogenesis, reinterpreting the suffix -genesis as the book of the Bible, Genesis, which is directly followed by Exodus.
Etymology from Wiktionary, CC BY-SA 4.0.