Rigation vs. Rogation: What's the Difference?

Rigation and Rogation Definitions
Rigation
(obsolete) irrigation
Rogation
Often rogations(Ecclesiastical) Solemn prayer or supplication, especially as chanted during the rites of a Rogation Day.
Rogation
The formal proposal of a law in ancient Rome by a tribune or consul to the people for acceptance or rejection.
Rogation
A law proposed in this manner.
Rogation
A deeply serious and somber prayer or entreaty.
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Rogation
The demand, by the consuls or tribunes, of a law to be passed by the people; a proposed law or decree.
Rogation
The demand, by the consuls or tribunes, of a law to be passed by the people; a proposed law or decree.
Rogation
Litany; supplication.
He perfecteth the rogations or litanies before in use.
Rogation
A solemn supplication ceremony prescribed by the church