Supernumerary
Supernumerary , adjective
[Latin supernumerarius: compare Old French supernuméraire, French surnuméraire. See Super-, and Numerary, Number.]
1.
Exceeding the number stated or prescribed; as, a supernumerary officer in a regiment.
2.
Exceeding a necessary, usual, or required number or quality; superfluous; as, supernumerary addresses; supernumerary expense. — Addison
Supernumerary ({not transcribed}) , noun
1.
A person or thing beyond the number stated.
2.
A person or thing beyond what is necessary or usual; especially, a person employed not for regular service, but only to fill the place of another in case of need; specifically, in theaters, a person who is not a regular actor, but is employed to appear in a stage spectacle.