annex vs remainder

annex

verb
  • To attach or connect, as a consequence, condition, etc. 

  • To join; to be united. 

  • To add something to another thing, especially territory; to incorporate. 

noun
  • An appendix to a book or document. 

  • An addition to the territory of a country or state, from a neighbouring country or state, normally by military force. 

  • An addition, an extension. 

  • An addition or extension to a building. 

remainder

noun
  • Excess stock items left unsold and subject to reduction in price. 

  • The amount left over after subtracting the divisor as many times as possible from the dividend without producing a negative result. If n (dividend) and d (divisor) are integers, then n can always be expressed in the form n = dq + r, where q (quotient) and r (remainder) are also integers and 0 ≤ r < d. 

  • An estate in expectancy which only comes in its heir's possession after an estate created by the same instrument has been determined 

  • A part or parts remaining after some has/have been removed. 

  • The number left over after a simple subtraction 

verb
  • To mark or declare items left unsold as subject to reduction in price. 

adj
  • Remaining. 

How often have the words annex and remainder occurred in a corpus of books? (source: Google Ngram Viewer )