The Collaborative International Dictionary of English v.0.48:

Momier \Mom"i*er\, n. [F. m[^o]mier, fr. OF. momer, mommer, to
   mumm, to mask one's self.]
   A name given in contempt to strict Calvinists in Switzerland,
   France, and some parts of Germany, in the early part of the
   19th century.
   [1913 Webster]