(French) form of Christina. It was popular in the medieval period, when it appears to have been used interchangeably with Christian, and again in Britain at the end of the 19th century. In the United States it was particularly popular from the 1950s to the 1970s.
Scottish: according to tradition, this is a rare example of a Gaelic surname of topographic origin, the first element of which is probably Gaelic mun, a mutated form of bun ‘foot’, or British minit ‘hill’. In Ireland this name has sometimes been used as an equivalent of O’Mellan (see Mellon) and Milroy 2.