mājus, a, um, adj. [root mag, whence magis, magnus], an old word for magnus,
great , e. g. Majus Deus, i. e. Jupiter : Dea Maia, Macr. S. 1, 12, 17.
Māius (1) adj.,of May, of the month of May: Kalendae: mensis.—As substm. (sc. mensis), May, O. ...
An Elementary Latin Dictionary
māius (2) neut. comp.of magnus. ...