Legate(n.) An ambassador or envoy.
Legate(n.) An ecclesiastic representing the pope and invested with the authority of the Holy See.
Legate(n.) An official assistant given to a general or to the governor of a province.
Legate(n.) Under the emperors, a governor sent to a province.
Legation(n.) The sending forth or commissioning one person to act for another.
Legation(n.) A legate, or envoy, and the persons associated with him in his mission; an embassy; or, in stricter usage, a diplomatic minister and his suite; a deputation.
Legation(n.) The place of business or official residence of a diplomatic minister at a foreign court or seat of government.
Legation(n.) A district under the jurisdiction of a legate.
Legator(n.) A testator; one who bequeaths a legacy.
Words within legations