(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.
Northeastern English: 1. from the Middle English personal name Almund, from Old English Æðelmund, ‘noble protection’. 2. variant of Allman ‘German’, assimilated by folk etymology to the vocabulary word denoting the tree.