Related Name Family Tree for the element "cath"

Family #1

katus Old Celtic (word)		cat Old Welsh (word)		Cadoc m Old Welsh (given name)
				Catell m Old Welsh (given name)		Cadell m Welsh (Rare) (given name)
		cath Old Irish (word)		Cathán m Old Irish (given name)		Ó Catháin Irish (surname)		Kane Irish (surname)		Kane m English (Modern) (given name)
								Kean Irish (surname)		Kean m English (Rare) (given name)
								Keane Irish (surname)		Keane m English (Modern) (given name)
								O'Kane Irish (surname)

Family #2

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 (surname)		Donaghue Irish (surname)
								Donoghue Irish (surname)
								Donohoe Irish (surname)
								Donohue Irish (surname)
				Donnchadh m Scottish Gaelic (given name)		Duncan m Scottish (given name)		Duncan Scottish (surname)
								Duncan m English (given name)
								Duncanson Scottish (surname)

Family #3

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

Family #4

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

Family #5

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