clean (English)
Where does "clean" come from?
The English adjective 'clean' descends from the Middle English 'clene'[1], which came from the Old English 'clǣne'[1] meaning 'clean, pure'. This Old English term traces back to the Proto-West Germanic '*klainī'[1] meaning 'shining, fine, splendid, tender'. Going back further, it likely derives from the Proto-Indo-European '*glēy-'[1] meaning 'gleaming', which itself stems from '*gel-'[1] meaning 'to gleam'. Over its history, the word shifted from notions of brightness and splendor to physical purity and freedom from dirt or contamination.
Open questions
- The derivation from Proto-Indo-European roots and the exact connection to West Germanic forms meaning shining, fine, or small are disputed or uncertain. [3]
Full etymology tree
- clean (English), 'Free of dirt, filth, or impurities (extraneous matter); not dirty, filthy, or soiled.'
- inherited clene (Middle English), 'clean'
- inherited clæne (Old English), 'clean'
- inherited *klainī (Proto-West Germanic), 'fine, small'
- inherited clæne (Old English), 'clean'
- inherited clene (Middle English), 'clean'
Ancestors
- clene (Middle English)
- *klainī (Proto-West Germanic)
- *gel- (Proto-Indo-European)
Cognates and doublets
- klein (Dutch)
- klein (German)
- klénn (Icelandic)
- kleen (Low German)
- klen (Swedish)
Descendants and derived words
- a new broom sweeps clean (English)
- bioclean (English)
- broom-clean (English)
- certificate of clean criminal record (English)
- cleanaholic (English)
- clean as a bean (English)
- clean as a hound's tooth (English)
- clean as a new penny (English)
- clean as a new pin (English)
- clean as a whistle (English)
- clean bill of health (English)
- clean bomb (English)
Sources
- clean (English) - Wiktionary
- clene (Middle English) - Wiktionary
- klainī (Proto-West Germanic) - Wiktionary
- clæne (Old English) - Wiktionary
Updated August 2026
Etymology data from Wiktionary, CC BY-SA 4.0 · About Miraris