Related Name Family Tree for the element "donn"

donn Old Irish (word) + dub Old Irish (word)		Donndubán m Old Irish (using element)		Ó Donndubháin Irish		Donovan Irish		Donovan m English (given name)

donn Old Irish (word) + cath Old Irish (word)	Donnchad m Old Irish (using element)	Donnacha m Irish (given name)
		Donncha m Irish (given name)
		Donnchadh m Irish (given name)	Donagh m Irish (given name)
			Ó Donnchadha Irish	Donaghue Irish
				Donoghue Irish
				Donohoe Irish
				Donohue Irish
		Donnchadh m Scottish Gaelic (given name)	Duncan m Scottish (given name)	Duncan Scottish
				Duncan m English (given name)
				Duncanson Scottish

ech Old Irish (word) + donn Old Irish (word)		Echdonn m Old Irish (using element)		Eachann m Scottish Gaelic (given name)