However, you could get close with a near-homonym like:
* "Decembered" (past tense of a made-up verb meaning something like "to have been affected by December"). This sounds very similar but is not a real word.
* "dis-embered" (meaning to have been disembodied) This sounds similar but has a completely different meaning and spelling.
It's important to remember that true homonyms have the same pronunciation and different meanings and spellings. "December" doesn't have a perfect match in that regard.