enlighten (English)
Where does "enlighten" come from?
The English word 'enlighten' traces its origins back to the Old English verb 'inlīhtan,' which was built from the prefix 'in-' and the root for light. This term has ancient Germanic roots, with cognates appearing in Gothic and Old High German as part of a shared effort to describe the act of illuminating. Over time, the word evolved into its current form, moving beyond the literal sense of providing physical light to include the intellectual sense of giving knowledge or understanding.
Full etymology tree
- enlighten (English), 'To supply with light.'
- inherited from enlightenen (Middle English)
- inherited from inlīhtan (Old English), 'to illuminate, make bright, cause to shine'
- inherited from *inliuhtijaną (Proto-Germanic), 'to enlighten, illumine'
- prefix *in (Proto-Germanic), 'in'
- inherited from *h₁én (Proto-Indo-European), 'in'
- derived from *leuhtą (Proto-Germanic), 'light'
- inherited from *lewk- (Proto-Indo-European), 'bright'
- prefix *in (Proto-Germanic), 'in'
- inherited from *inliuhtijaną (Proto-Germanic), 'to enlighten, illumine'
- inherited from inlīhtan (Old English), 'to illuminate, make bright, cause to shine'
- inherited from enlightenen (Middle English)
Direct ancestors
Updated March 2026
Etymology data from Wiktionary, CC BY-SA 4.0 · About Miraris