What is Sexagesima Sunday? According to CatholicismAbout.com, "Sexagesima Sunday is the second Sunday before the start of Lent, which makes it the eighth Sunday before Easter. Traditionally, it was the second of three Sundays (Septuagesima is the first and Quinquagesima is the third) of preparation for Lent."
Got all that? Now we just call it "Ordinary Time."
For more information, you can read another article here. Please enjoy the video.
Whew! That's a lot of Latin!