The crwth is also known as a crowd, cruth, crowth, crouth or rote in English. It is a kind of bowed lyre. It is particularly associated with Wales, but similar instruments were played in many parts of Europe from about the 11th century. It went out of fashion in the 18th century, but was revived in the 20th century. More information.
gwern [ɡwɛrn] = alder (tree), made of alder; mast of a ship; (alder) stick, stave, shaft of lance; alder-grove, alder-marsh, swamp, quagmire; damp meadow; hell