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.
Word Origin and History for commissary Expand. n. mid-14c., one to whom special duty is entrusted by a higher power, from Medieval Latin commissarius, from Latin commissus entrusted, past participle of committere (see commit). Originally ecclesiastical; the military sense of official in charge of supply of food, stores, transport dates to late 15c.