Muirchertach (modern spelling: Muircheartach, anglicised as Murtagh) is an Irish language male given name meaning `mariner`. Muirchertach was borne by several figures from legend and history, including: ... Found on http://en.wikipedia.org/wiki/Muirchertach
1) Irish-language boy name 
Muirchertach (modern spelling: Muircheartach, anglicised as Murtagh) is an Irish language male given name meaning `mariner`. Muirchertach was borne by several figures from legend and history, including: ...