deliquescent vs mellifluous

deliquescent

adj
  • Seeming to melt away. 

  • Branching so that the stem is lost in branches, as in most deciduous trees. 

  • Becoming liquid as a phase of its life cycle. 

  • Absorbing moisture from the air and forming a solution. 

mellifluous

adj
  • Flowing like honey. 

  • Sweet, smooth and musical; pleasant to hear (generally used of a person's voice, tone or writing style). 

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