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Guilen (Basque) Gulielmus, Vilhelmus, Willelmus, Gullelmus, Gullielmus,
Villelmus (Latin)
Guglielmo (Italian)
Guillaume (French)
Guildhelm (Old Dutch) Guilhèm...
- Viliefredus, Vilifonsus, Viligus, Vilitro, Viliulfus, Vilivado, Villavaria,
Villelmus, Villisendo,
Villo vim- *wīgą "fight, battle" Guimarigus, Uimaredus, Viman...
- Viliefredus, Vilifonsus, Viligus, Vilitro, Viliulfus, Vilivado, Villavaria,
Villelmus, Villisendo,
Villo vim- to PGmc *wīgą "fight, battle": Guimarigus, Uimaredus...