moisture vs waterworks

moisture

noun
  • That which moistens or makes damp or wet; exuding fluid; liquid in small quantity. 

  • The state of being moist. 

  • Skin moisture noted as dry, moist, clammy, or diaphoretic as part of the skin signs assessment. 

waterworks

noun
  • A hydraulic apparatus by which a supply of water is furnished for ornamental purposes; also, an ornamental fountain or waterfall. 

  • The genitourinary system. 

  • The water supply system of a district, town, city, or other place, including reservoirs, pipes, and pumps. 

  • Any single facility, such as a filtration plant or pumping station, within such a system. 

  • Rain. 

  • Often in the form turn on the waterworks: crying or tears, especially in a way that is considered manipulative or over-emotional. 

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