damp vs deliquescent

damp

adj
  • In a state between dry and wet; moderately wet; moist. 

  • Despondent; dispirited, downcast. 

verb
  • To suppress vibrations (mechanical) or oscillations (electrical) by converting energy to heat (or some other form of energy). 

noun
  • A gaseous product, formed in coal mines, old wells, pits, etc. 

  • Moisture; humidity; dampness. 

deliquescent

adj
  • Absorbing moisture from the air and forming a solution. 

  • 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. 

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