English edit

 
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Etymology edit

From Latin undecim (eleven), respelled like December; see Undecimber.

Proper noun edit

Undecember

  1. Alternative form of Undecimber
    • 2013, Joe Millard, Savor the Seasons, iUniverse, →ISBN, page 87:
      December is weather returning. Xmas celebrating. Undecember, the thirteenth month, is Year's ending. Zero days remaining.

See also edit

Anagrams edit