oversight vs validity

oversight

noun
  • An omission; something that is left out, missed or forgotten. 

  • Supervision or management. 

  • Overview. 

verb
  • To suppress content in a way that removes or minimizes its visibility or viewability. 

  • To oversee; to supervise. 

validity

noun
  • The genuinity - as distinguished from the efficacity or the regularity - of a sacrament as a result of some formal dispositions being fulfilled. 

  • The state of being valid, authentic or genuine. 

  • State of having legal force. 

  • A quality of a measurement indicating the degree to which the measure reflects the underlying construct, that is, whether it measures what it purports to measure (see reliability). 

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