The name William is a German baby name. In German the meaning of the name William is: Resolute protector; will. For a long time after the Norman conquest in A.D. 1066 many English boys were given some form of William the Conquer's name. ... The firstborn son of Prince Charles is named William.
Twilliam is baby boy name mainly popular in Christian religion and its main origin is . Twilliam name meanings is Resolute protector. Other similar sounding names can be William.