in the Catechism. M is a contraction of NN (names); N is for name. The respondent is required to give his names if he has more than one, or his name if only one.
In the marriage service, M stands for mas (the man) or mari’tus (the bridegroom), and N for nupta (the bride).
There are some who think M stands for Mary, the patron saint of girls, and N for Nicholas, the patron saint of boys.
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