Cavete Idus Martias

By the way, I hope you were all ware of the Ides of March yesterday. I didn’t blog this yesterday because, flush from the Pi Day festivities, I spent all day being ware.

Note also that the title of the post is the correct form (even if it was never actually used on the actual day), which you can trot out next year. The word for “Ides” takes the name of the month as an adjective, and in fact month names generally are adjectives in Latin. “Idus” is a fourth-declension feminine plural.