If the months of the year had Latin names, they'd look like this:
Huh. Those last four months look familiar.
Months 11 and 12 would be Undecember and Duodecember, but since we're playing the "months with Latin names" game, I'm going to say the last two months are January and February. Or we could imitate the Romans and name those months after their holidays, which would make them Gratesber and Natalusber ("month of Thanksgiving" and "month of Christmas").