noun.
That department of an army the duties of which consist in supplying transport, provisions, forage, camp equipage, etc., to the troops; also, the body of officers in that department.
noun.
The office or employment of a commissary.
noun.
In Scots law, the jurisdiction of a commissary; the district of country over which the authority or jurisdiction of a commissary extends. See extract.
Pertaining to or concerned in furnishing supplies: as, the commissariat department; commissariat arrangements.