ETYM Latin supernumerarius: cf. Old Fren. supernuméraire, French surnuméraire. Related to Super-, and Numerary, Number.
1. Exceeding the number stated or prescribed.
2. Exceeding a necessary, usual, or required number or quality; superfluous.
A minor actor in crowd scenes; SYN. spear carrier, extra.
Above the stated, usual or necessary number
(person) in addition to usual or necessary number.