"Mac" means "son of" in Gaelic (Celtic) languages. "Grandson of" is "Ua" or "O," e.g. MacDowell, O'Malley. Retrieved from "http://negima.wikia.com/wiki/Celtic_languages?oldid=3884" Ad blocker interference detected! Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.