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.
Commis chef. A commis chef is the lowest cook in the restaurant kitchen hierarchy. A commis chef may have only recently completed (or still be in the middle of) their formal training. This is generally a training/apprentice type position; the commis is expected to learn on the job and work their way up the hierarchy.