The story
- Proto-Indo-European*úp
- Proto-Indo-European*upér
- Proto-Germanic*uber
- Old Englishofer-
- Middle Englishover-
- Englishover-
- Proto-Indo-European*h₁én
- Proto-Italic*en
- Proto-Italic*en-
- Latinin-
- Proto-Indo-European*lewk-
- Proto-Indo-European*léwksmn̥
- Proto-Italic*louksmən
- Latinlūmen
- Latinlūminō
- Latinillūminō
- Late Latinillūminātiō
- Middle Frenchillumination
- Englishillumination
- English todayoverillumination
From over- + illumination.
Etymology from Wiktionary, CC BY-SA 4.0.