phobia (English)
Where does "phobia" come from?
The word phobia traces its distant origins to the Proto-Indo-European root *bʰegʷ-, which meant to flee. This evolved into the Ancient Greek word phóbos, meaning fear, before eventually entering the English language around 1790. Today, it serves as both a standalone noun for irrational fear and a common suffix used to describe intense aversions or phobias.
Full etymology tree
- phobia (English), 'An irrational, abnormal, or obsessive fear (of something).'
- back-formation φόβος (phóbos) (Ancient Greek), 'fear, terror, alarm, fright, panic'
- inherited *pʰógʷos (Proto-Hellenic)
- inherited *bʰógʷos (Proto-Indo-European)
- derived *bʰegʷ- (Proto-Indo-European), 'to flee'
- influence *bʰewg- (Proto-Indo-European), 'to flee'
- derived *bʰegʷ- (Proto-Indo-European), 'to flee'
- inherited *bʰógʷos (Proto-Indo-European)
- inherited *pʰógʷos (Proto-Hellenic)
- back-formation φόβος (phóbos) (Ancient Greek), 'fear, terror, alarm, fright, panic'
Direct ancestors
Updated June 2026
Etymology data from Wiktionary, CC BY-SA 4.0 · About Miraris