defy (English)
Where does "defy" come from?
The English word "defy" descends from the Old French "desfier," which traces back to the Vulgar Latin "disfidare," meaning to renounce one's faith. By combining "dis-" (away) with a root related to trust or faith, the term originally described breaking allegiance. By the 14th century, the meaning evolved from this act of disloyalty into the modern sense of issuing a bold challenge.
Full etymology tree
- defy (English), 'A challenge.'
- inherited desfier (Old French), 'to defy'
- inherited *disfidare (Vulgar Latin)
- prefix dis- (Latin), 'asunder, apart, in two'
- inherited *dis- (Proto-Italic)
- inherited *dwís (Proto-Indo-European), 'twice, doubly'
- inherited *dus- (Proto-Indo-European), 'bad'
- inherited *dis- (Proto-Italic)
- derived fidus (Latin), 'trusty, trustworthy, dependable, credible'
- inherited *feiðos (Proto-Italic), 'faithful, reliable'
- inherited *bʰeydʰós (Proto-Indo-European), 'faithful, trustworthy'
- inherited *feiðos (Proto-Italic), 'faithful, reliable'
- prefix dis- (Latin), 'asunder, apart, in two'
- inherited *disfidare (Vulgar Latin)
- inherited desfier (Old French), 'to defy'
Direct ancestors
Updated June 2026
Etymology data from Wiktionary, CC BY-SA 4.0 · About Miraris