Rogation Week
Black's Law Dictionary · Henry Campbell Black, M.A. · 1910
Black's Law Dictionary
In English ecclesiastical law. The second week before Whitsunday, thus called from three fasts observed therein, the Monday, Tuesday, and Wednesday, called "Rogation days," because of the extraordinary prayers then made for the fruits of the earth or as a preparation for the devotion of Holy Thursday.
Wharton.