METHEGLIN Meaning of METHEGLIN in English [ mɪ'θɛglɪn , 'mɛθəglɪn ]■ noun historical a spiced variety of mead.OriginC16: from Welsh meddyglyn , from meddyg 'medicinal' + llyn 'liquor'. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004