obscure (English)
Where does "obscure" come from?
The word 'obscure' traces its roots back to the Proto-Indo-European root *(s)ḱeh₃-, which signified darkness or shadow. It evolved through Proto-Italic and Latin as 'obscūrus,' a combination meaning 'dark' or 'indistinct,' before passing through Old French into Middle English. Over centuries, its meaning expanded from literally dark or dusky to figuratively describe things that are hidden, difficult to understand, or not well-known.
Full etymology tree
- obscure (English), 'Dark, faint or indistinct.'
- inherited obscure (Middle English)
- borrowed obscur (Old French)
- inherited obscūrus (Latin), 'dark, dusky, shadowy'
- compound ob- (Latin), 'towards; against'
- inherited *op (Proto-Italic), 'towards'
- inherited *h₁epi (Proto-Indo-European), 'on, at, near'
- inherited *op (Proto-Italic), 'towards'
- compound *scūrus (Latin)
- inherited *skoiros (Proto-Italic)
- inherited *(s)ḱeh₃- (Proto-Indo-European), 'darkness, shadow'
- inherited *skoiros (Proto-Italic)
- compound ob- (Latin), 'towards; against'
- inherited obscūrus (Latin), 'dark, dusky, shadowy'
- borrowed obscur (Old French)
- inherited obscure (Middle English)
Direct ancestors
- (s)ḱeh₃- (Proto-Indo-European)
- obscurus (Latin)
- ob- (Latin)
- (s)ḱeh₃- (Proto-Indo-European)
- oscuro (English)
Updated June 2026
Etymology data from Wiktionary, CC BY-SA 4.0 · About Miraris