9 letters · 12 points in Scrabble
originBran(n)- refers to an ancient king of Wales, his name meaning "raven" in Old Welsh. His head is said to be buried under the Tower of London & is why, it is said, that ravens flock to it. "-igan" is an Anglicization of the Brythonic Gaelic surname suffix "-yggan" which means "descendant of".
Etymology from Wiktionary, CC BY-SA 3.0