William (English)
Where does "William" come from?
The name William originates from the Proto-Germanic compound *Wiljahelmaz, which combined the words for 'will' and 'helmet,' implying a 'resolute protector.' This name traveled from Old High German into Anglo-Norman as Willame before evolving into the familiar English William following the Norman Conquest. Its roots stretch back even further to ancient Indo-European terms for choosing and covering, showcasing a deep linguistic history that mirrors its enduring popularity.
Full etymology tree
- William (English), 'A male given name from the Germanic languages popular since the Norman Conquest.'
- inherited William (Middle English), 'a male given name, equivalent to English William'
- inherited Willame (Anglo-Norman)
- inherited Willahelm (Old High German)
- inherited *Wiljahelmaz (Proto-Germanic), 'a male given name'
- compound *wiljô (Proto-Germanic), 'will, wish, desire'
- derived *wiljaną (Proto-Germanic), 'to want'
- inherited *wḗlh₁-ti / *wélh₁-n̥ti (Proto-Indo-European)
- derived *welh₁- (Proto-Indo-European), 'to choose'
- inherited *wḗlh₁-ti / *wélh₁-n̥ti (Proto-Indo-European)
- derived *wiljaną (Proto-Germanic), 'to want'
- compound *helmaz (Proto-Germanic), 'helmet'
- inherited *ḱelmos (Proto-Indo-European)
- derived *ḱel- (Proto-Indo-European), 'to cover'
- inherited *ḱelmos (Proto-Indo-European)
- compound *wiljô (Proto-Germanic), 'will, wish, desire'
- inherited *Wiljahelmaz (Proto-Germanic), 'a male given name'
- inherited Willahelm (Old High German)
- inherited Willame (Anglo-Norman)
- inherited William (Middle English), 'a male given name, equivalent to English William'
Direct ancestors
- welh₁- (Proto-Indo-European)
- William (Middle English)
- Wiljahelmaz (Proto-Germanic)
- wiljô (Proto-Germanic)
- Gulielmus (Latin)
- Willem (Dutch)
- Wilhelm (German)
- Guillaume (English)
Updated July 2026
Etymology data from Wiktionary, CC BY-SA 4.0 · About Miraris