Pedi means feet and hundreds of years ago, the word impediment referred to shackling one's feet. Now its use has broadened considerably. Impediment is something that blocks or impedes your path.
Freebase(0.00 / 0 votes)Rate this definition: Commissary. A commissary is someone delegated by a superior to execute a duty or an office; in a formal, legal context, one who has received power from a legitimate superior authority to pass judgment in a certain cause or to take information concerning it.
commissary â(plural commissaries) 1  A store primarily serving persons in an institution, most often soldiers or prisoners. 2  A cafeteria at a movie studio. 3  One to whom is committed some charge, duty, or office, by a superior power; a commissioner. John Donne Great Destiny, the Commissary of God.