The office of, or landed estate granted to, a senator, especially in France under the consulate and First French Empire.
1994, Eric Anderson Arnold, A Documentary Survey of Napoleonic France, University Press of Amer
On Senatories
1) There will be a Senatory for each district of the Court of Appeals.
2) Each Senatory will be endowed with a house and an annual income, drawn from the national domain, of 20,000 to 25,000 francs.
adjective
(obsolete) Senatorial.
The name is a Latin one, and is often a person of figure at Rome, and of the senatory order, I mentioned by Martial the poet.