(male) Probably the most successful of all the Old French names of Germanic origin that were introduced to England by the Normans. It is derived from Germanic wil ‘will, desire’ + helm ‘helmet, protection’. The fact that it was borne by the Conqueror himself does not seem to have inhibited its favour with the ‘conquered’ population: in the first century after the Conquest it was the commonest male name of all, and not only among the Normans. In the later Middle Ages it was overtaken by John, but continued to run second to that name until the 20th century, when the picture became more fragmented.
Short forms: Will, Bill.
Pet forms: Willy, Willie, Billy.
Cognates: Irish: Uilliam. Scottish Gaelic: Uilleam. Welsh: Gwilym. German: Wilhelm. Dutch: Willem. Scandinavian: Vilhelm. French: Guillaume. Spanish: Guilermo. Catalan: Guillem. Portuguese: Guilherme. Italian: Guglielmo. Czech: Vilém. Slovenian: Viljem. Hungarian: Vilmos. Lithuanian: Vilhelmas. Latvian: Vilhelms.
Irish (Galway and Mayo): Anglicized form of Gaelic Ó Béara or Ó Beargha (see Barry 1).
Scottish and northern Irish: variant spelling of Barrie.
English: habitational name from any of several places named with Old English byrig, dative case of burh ‘fortified manor house’, ‘stronghold’, such as Berry in Devon or Bury in Cambridgeshire, Greater Manchester, Suffolk, and West Sussex.
French: regional name for someone from Berry, a former province of central France, so named with Latin Boiriacum, apparently a derivative of a Gaulish personal name, Boirius or Barius. In North America, this name has alternated with Berrien.
Swiss German: pet form of a Germanic personal name formed with Old High German bero ‘bear’ (see Baer).
