Type Word Usage Old Celtic (Hypothetical) Meaning & History Celtic word meaning "thunder" [1]. Related ItemsDetails Other Languages & Culturestaran(Old Welsh) Given Name DescendantsTaranis(Gaulish Mythology) Taran(Pictish) Taran(Welsh Mythology) Sources & References Matasović, Ranko. Etymological Dictionary of Proto-Celtic. Brill, 2009, page 384.