effectivity vs gift

effectivity

noun
  • The ability or power to be effective. 

  • [Technical documentation] An indication of the product, procedure, or timescale for which an item of information is applicable or effective. 

  • A measure of the effectiveness of something. 

gift

noun
  • A talent or natural ability. 

  • Something given to another voluntarily, without charge. 

  • Something gained incidentally, without effort. 

  • The act, right, or power of giving or bestowing. 

verb
  • To give as a gift or donation. 

  • To give away, to concede easily. 

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