The Morrow of a feast, is the day following: thus the feast of All Souls, is November 2d, and the Morrow of All Souls is consequently the 3d of November.
The Octave or Utas of each feast, is always the eighth day after it occurs; for example, the feast of St. Hillary, is the 13th of February, hence the Octave of St. Hillary, is the 20th of that month.
In the Octaves, means within the eight days following any particular feast.
Septuagesima
Is the ninth Sunday before Easter Sunday.
Sexagesima
Is the eighth Sunday before Easter.
Quinquagesima
Is the seventh Sunday before Easter.