Related Name Family Tree for the element "cath"

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

cat, cath (word) + fal, gwaladr (word)	Cadwaladr m Welsh (using element)	Cadwalader m Welsh (Rare)	Cadwallader Welsh (surname)
	Cathal m Old Irish (using element)	Cathal m Irish	Cahal m Irish
		Cathalán m Old Irish (diminutive)	Ó Cathaláin Irish (surname)	Callan Irish (surname)	Callan m English

cath Old Irish (word) + fer 1 Old Irish (word)		Cathaoir m Irish (Rare) (using element)		Cahir m Irish
				Cathair m Irish

muir Old Irish (word) + cath Old Irish (word)	Murchad m Old Irish	Murchadh m Medieval Irish	Murdock Irish (surname)
			Murrough m Irish
			Ó Murchadha Irish (surname)	Murphy Irish (surname)	Murphy m & f English
		Murchadh m Scottish Gaelic	Murdo m Scottish	Murdag f Scottish Gaelic
			Murdoch Scottish (surname)