Webster's Revised Unabridged Dictionary · 1913

Rogation

Rogation , noun

[Latin rogatio, from rogare, rogatum, to ask, beg, supplicate: compare French rogation. Compare Abrogate, Arrogant, Probogue.]

1.
(Rom. Antiquities) The demand, by the consuls or tribunes, of a law to be passed by the people; a proposed law or decree.
2.
(Ecclesiastical) Litany; supplication.
He perfecteth the rogations or litanies before in use. — Hooker
Collocations (3)
Rogation days (Ecclesiastical) , the three days which immediately precede Ascension Day; -- so called as being days on which the people, walking in procession, sang litanies of special supplication.
Rogation flower (Botany) , a European species of milkwort (Polygala vulgaris); -- so called from its former use for garlands in Rogation week. — Dr. Prior
Rogation week , the second week before Whitsunday, in which the Rogation days occur.