earmark vs preform

earmark

verb
  • To mark (sheep or other animals) by slitting the ear. 

  • To specify or set aside for a particular purpose, to allocate. 

  • To designate part of a pension to be payable to the holder's former spouse or partner at its time of payment. 

noun
  • The designation of specific projects in appropriations of funding for general programs. 

  • A mark for identification; a distinguishing mark. 

  • A mark or deformation of the ear of an animal, intended to indicate ownership. 

preform

verb
  • To shape something before some other operation. 

noun
  • The rough, incomplete and unused basic form of a stone tool. 

  • An object that has undergone preliminary shaping but is not yet in its final form. 

  • A word that is no longer in use, but has been reconstructed from current ones. 

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