preference vs velleity

preference

noun
  • The state of being preferred over others. 

  • The option to so select, and the one selected. 

  • The selection of one thing or person over others (with the main adposition being "for" in relation to the thing or person, but possibly also "of") 

  • Preferans, a card game, principally played in Eastern Europe. 

  • A strong liking or personal valuation. 

  • A preferential bias; partiality; discrimination. 

verb
  • To give preferential treatment to; to give a preference to. 

velleity

noun
  • The lowest degree of desire or volition; a total lack of effort to act. 

  • A slight wish not followed by any effort to obtain. 

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