D defs.my
Entry 3 senses Webster, 1913

Commissary

/käm'-əs-ĕrˌ-ē/ · Com·mis·sa·ry · IPA /ˈkɑ.mɪˌsɛɹ.i/
01 n. One to whom is committed some charge, duty, or office, by a superior power; a commissioner.
pl. Commissaries ((#))
  1. 1.
    One to whom is committed some charge, duty, or office, by a superior power; a commissioner.
    “Great Destiny, the Commissary of God.” — Donne.
  2. 2.
    An officer of the bishop, who exercises ecclesiastical jurisdiction in parts of the diocese at a distance from the residence of the bishop.(Eccl.)
  3. 3.
    An officer having charge of a special service; as, the commissary of musters.(Mil.) [U. S.]
    “Washington wrote to the President of Congress . . . urging the appointment of a commissary general, a quartermaster general, a commissary of musters, and a commissary of artillery.” W. Irving
Phrases & compounds
Commissary general — an officer in charge of some special department of army service
Commissary general of subsistence — the head of the subsistence department, who has charge of the purchase and issue of provisions for the army.