remainder vs surplus

remainder

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

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 

adj
  • Remaining. 

surplus

verb
  • To treat as surplus to requirements; to sell off or dismiss from employment, etc. 

adj
  • Being or constituting a surplus; more than sufficient. 

noun
  • Specifically, an amount in the public treasury at any time greater than is required for the ordinary purposes of the government. 

  • The remainder of a fund appropriated for a particular purpose. 

  • That which remains when use or need is satisfied, or when a limit is reached; excess; overplus. 

  • assets left after liabilities and debts, including capital stock have been deducted. 

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