The quality of being supernumerary.

plural of supernumerary

Greater in number than. / Beyond the prescribed or standard amount or number; excess, extra. / (biology, specifically) Of an organ or structure: additional to what is normally present.

A person who works in a group, association, or public office without forming part of the regular staff (the numerary).

One of the faintly colored bands sometimes seen bordering the violet edge of a rainbow, i.e. inside the primary bow or, much more rarely, outside the secondary.

plural of supernumerary rainbow