condense vs liquefy

condense

verb
  • To be transformed from a gaseous state into a liquid state. 

  • To transform from a gaseous state into a liquid state via condensation. 

  • To concentrate toward the essence by making more close, compact, or dense, thereby decreasing size or volume. 

liquefy

verb
  • To become liquid. 

  • To distort and warp an image. 

  • To make into a liquid. 

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