Dhonnchaidh
Dhonnchaidh is a given name of Gaelic origin. It is the Irish and Scottish Gaelic form of the name "Duncan". The name Duncan itself is derived from the Gaelic elements "donn" meaning "brown" and "cadh" meaning "king". Therefore, Dhonnchaidh essentially means "brown-haired king" or "chief".
The name has a long history and is found in numerous historical records and literary works from