c.1300, from O.Fr. marier, from L. maritare "to wed, marry, give in marriage," from maritus "married man, husband," of uncertain origin, perhaps ult. from "provided with a *mari," a young woman, from PIE base *meri- "young wife," akin to *meryo- "young man" (cf. Skt. marya- "young man, suitor"). Said from 1530 of the priest, etc., who performs the rite. Related: Married; marrying.
a common oath in the Middle Ages, c.1350, now obsolete, a corruption of the name of the Virgin Mary.