remainder

Concise Oxford English Dictionary © 2008 Oxford University Press:
remainder/rɪˈmeɪndə(r)/

▶noun

• 1 a part, number, or quantity that is left over.

  ■ Mathematics the number which is left over in a division in which one quantity does not exactly divide another.

• 2 a part that is still to come.

• 3 a copy of a book left unsold when demand has fallen.

• 4 Law a property interest that becomes effective in possession only when a prior interest ends.

▶verb dispose of (a book left unsold) at a reduced price.

– origin ME: from Anglo-Norman Fr., from L. remanere (see remain).