deficient vs supernumerary

deficient

adj
  • Lacking something essential; often construed with in. 

  • Insufficient or inadequate in amount. 

  • Of a number n, Having the sum of divisors σ(n)<2n, or, equivalently, the sum of proper divisors (or aliquot sum) s(n). 

noun
  • A person who is deficient. 

supernumerary

adj
  • Beyond what is necessary; redundant. 

  • Of an organ or structure: additional to what is normally present. 

  • Greater in number than. 

  • Beyond the prescribed or standard amount or number; excess, extra. 

noun
  • An extra or walk-on, often non-speaking, in a film or play; a spear carrier. 

  • An animal which has not formed a pair bond and is therefore single. 

  • A married man or woman who is a secular member of Opus Dei, a Roman Catholic religious institution. 

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

  • Something which is beyond the prescribed or standard amount or number. 

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