supernumerary
adj.
"exceeding a stated number," c.1600, from Late Latin supernumarius "excess, counted in over" (of soldiers added to a full legion), from Latin super numerum "beyond the number," from super "beyond, over" (see super-) + numerum, accusative of numerus "number" (see number, n.). As a noun from 1630s.
〔李〕[super-;numer;-arya.] a.额外的； 临时雇的 ←numer (L numerus)=number 数
〔蒋〕[super-超，超出，numer数，-ary形容词后缀，…的;’超出定数之外的”] 额外的，多余的;[-ary表示人或物] 多余的人(或物)