Noah Webster
Invocation
INVOCA'TION, noun [Latin invocatio.]
1. The act of addressing in prayer.
2. The form or act of calling for the assistance or presence of any being, particularly of some divinity; as the invocation of the muses.
The whole poem is a prayer to Fortune, and the invocation is divided between the two deities.
3. A judicial call, demand or order; as the invocation of papers or evidence into a court.