Since the 12th month is December, a 13th month should obviously be called Undecember (the undec- prefix meaning 11 in Latin).
Better yet, just stick the new month in the middle of the calendar, but don’t rename the months that have numbers in their name. It already worked once (thanks, Romans).
After the revolution, the French came up with some poetic and meaningful (if you live north of the Tropic of Cancer) names for months. We could use those.
What would we call the 13th month?
Monthy McMonthface
Since the 12th month is December, a 13th month should obviously be called Undecember (the undec- prefix meaning 11 in Latin).
Better yet, just stick the new month in the middle of the calendar, but don’t rename the months that have numbers in their name. It already worked once (thanks, Romans).
Why not just use Tredecember since it the thirteenth month the twelfth month can become Duodecember and not december.
Elevenber
Twelvemper
Triskaidekatember
What about another month after May called Maytoo?
Jessember
Why not Eightuary, let’s keep the trend of bad naming going!
Hendecember. We could also move Easter and Xmas to both be in that month.
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After the revolution, the French came up with some poetic and meaningful (if you live north of the Tropic of Cancer) names for months. We could use those.