Merfyn

From an Old Welsh name (recorded variously as Mermin, Merhin or Merwin [1]), of uncertain meaning. It is possibly from mer "bone marrow" or mor "sea" with the second element possibly mynawg "eminent, noble" [2], mynnu "wish, desire" [3] or myn "young goat, kid" [4]. This was the name of a 9th-century king of Gwynedd, Merfyn Frych.