Type Word Usage Old Welsh Meaning & History Old Welsh word meaning "trees" [1] . Related ItemsFamily Tree ·Details Given Name DescendantsGwydion (Welsh) Gwydion (Welsh Mythology) Sources & ReferencesShow Inline Numbers Hide Inline Numbers Matasović, Ranko. Etymological Dictionary of Proto-Celtic. Brill, 2009, page 420. Share on Facebook Share on Twitter Entry updated May 26, 2026