delineation vs lineation

delineation

noun
  • A graphic verbal description. 

  • The act of delineating; depiction. 

  • An image of the outline of an object. 

lineation

noun
  • The way in which line breaks are inserted in a poem 

  • A linear feature in rock, often structural 

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