adumbration vs ghosting

adumbration

noun
  • A faint sketch; a brief representation, an outline. 

  • The state of being in shadow or shade; (countable) a shadow. 

  • The outline of a charge (“image displayed on an escutcheon”), sometimes filled in with a darker shade than the field. 

  • The form of an object as seen by an observer. 

  • A rough or symbolic representation; a vague indication of what is to come, a foreshadowing. 

ghosting

noun
  • The phenomenon of the writing on one side of a page in a notebook being partly visible on the other side. 

  • Ghost imaging. 

  • The practice of hiding prisoners from inspection from (possibly hostile) outside inspectors. 

  • The blurry appearance of a television picture resulting from interference caused by multipath reception. 

  • A form of identity theft in which someone steals the identity, and sometimes even the role within society, of a specific dead person (the "ghost") who is not widely known to be deceased. 

  • A problem with a keyboard where certain simultaneous keypresses trigger the action of a further key that was not in fact pressed. 

  • A method of ending a personal relationship by stopping any contact with the other party and not providing an explanation. 

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