a. [ L. medius middle + aevum age. See Middle, and Age. ] Of or relating to the Middle Ages; as, mediaeval architecture. [ Written also medieval. ] [ 1913 Webster ]

n. The method or spirit of the Middle Ages; devotion to the institutions and practices of the Middle Ages; a survival from the Middle Ages. [ Written also medievalism. ] [ 1913 Webster ]

n. One who has a taste for, or is versed in, the history of the Middle Ages; one in sympathy with the spirit or forms of the Middle Ages. [ Written also medievalist. ] [ 1913 Webster ]

adv. In the manner of the Middle Ages; in accordance with mediaevalism. [ 1913 Webster ]

n. pl. The people who lived in the Middle Ages. Ruskin. [ 1913 Webster ]