Broderick
Broderick is a surname which is derived from both the Irish and Welsh languages. In some cases it is an Anglicised form of the Irish Ó Bruadair, meaning "descendant of Bruadar".
The name has been thought to have been derived from a Norse personal name (Brodir). However, according to Benjamin Hudson, the Norse Brodir (meaning "brother") is not a proper Norse name at all. The Irish Bruattar/Bruadar/Brodur is first recorded in 853, in the name of Bruattar mac Aeda, an Irish princeling from the south-east of Ireland. As a Norse personal name, Brodir is only found in the name of a particular participant in the Battle of Clontarf and of a particular King of Dublin who was killed in 1160.