E. Cobham Brewer 1810–1897. Dictionary of Phrase and Fable. 1898.
Rogation Days.
The Monday, Tuesday, and Wednesday before Ascension Day. Rogation is the Latin equivalent of the Greek word “Litany,” and on the three Rogation days “the Litany of the Saints” is appointed to be sung by the clergy and people in public procession. (“Litany,” Greek litaneia, supplication. “Rogation,” Latin rogatio, same meaning.)
