Here is the latest from our Director of Worship, Dr. Paul Ciotti, concerning Ordinary Time:
The Prior to 1969, and the reforms from Vatican Council 2, the time following Pentecost was called the “Season of Pentecost.” This was covering the weeks of Pentecost to Advent. The reforms of Vatican 2, the time is now known as “Ordinary Time.” This weekend is the 11th Sunday in Ordinary Time. Before Vatican Council II, it would have been the 3rd Sunday After Pentecost – Trinity and Corpus Christi were the first and second Sundays after Pentecost.
Following the Christmas Season, prior to the start of Lent, we did celebrate the 2nd Sunday of Ordinary time to the 10th Sunday in Ordinary Time.
Wikipedia says “the word ordinary” as used here comes from the Ordinal Numbers by which the weeks are identified or counted . . . “remember from grade school that the Cardinal Numbers tell the order of things – [1st, 2nd, 3rd, 4th . . . ].