From a nickname from the Gaelic word creag ‘rock’, or in some cases a transferred use of the Scottish surname derived as a local name from this word. Though still particularly popular in Scotland, the given name is now used throughout the English-speaking world and is chosen by many people who have no connection with Scotland.
English: 1. variant of Blade, from the plural or genitive singular form. 2. habitational name from a place of uncertain location and origin. Its status as a habitational name is deduced from early forms cited by Reaney, such as Alan de Bladis (Leicestershire 1230), Hugh de Bladis (Staffordshire 1258), and William de Blades (Yorkshire 1301).