Type Word Usage Old Welsh, Medieval Breton Meaning & History Welsh and Breton word meaning "prince, chieftain, lord" [1]. Related ItemsDetails Other Languages & Culturesmaglos(Old Celtic) Given Name DescendantsArmel, Arzhel, Maël, Mael, Maela, Maëlle(Breton) Armel, Armelle, Maël, Maëlie, Maëlle, Maëlys(French) Arthfael(Medieval Welsh) Arthmail(Old Welsh) Cadfael(Welsh) Same Spellingmáel Sources & References Matasović, Ranko. Etymological Dictionary of Proto-Celtic. Brill, 2009, page 252.