History of Wales and the Welsh Language A non-Welsh-speaking linguist discusses the origins of the Welsh language. ‘JuLingo’ points out that Welsh is “the senior language of men in Britain”, according to Tolkien. Welsh, she says, is the most widespread language in one of the most scarce language families. A language with Celtic heart, soul, and structure and a minority language that has reversed its decline. An interesting American take on Welsh history by Overly Sarcastic Productions