Plutonian vs lower

Plutonian

adj
  • Pertaining to the astrological influence of Pluto, formerly regarded as a planet. 

  • Of or relating to Pluto, the Greek and Roman god of the underworld; demonic, infernal. 

  • Synonym of plutonic (“of, pertaining to, or supporting plutonism, the theory that the rocks of the Earth were formed in fire by volcanic activity, with a continuing gradual process of weathering and erosion, then deposited on the sea bed, re-formed into layers of sedimentary rock by heat and pressure, and raised again”) 

  • Of or relating to the dwarf planet Pluto. 

  • Synonym of plutonic (“of or pertaining to rocks formed deep in the Earth's crust, rather than by volcanoes at the surface of the Earth”) 

  • Of, relating to, or having characteristics associated with the underworld; dark, gloomy; mournful. 

noun
  • A person under the astrological influence of Pluto, formerly regarded as a planet. 

  • A proponent of plutonism; a plutonist. 

  • An (imaginary) inhabitant of the dwarf planet Pluto. 

lower

adj
  • bottom; more towards the bottom than the middle of an object 

  • Situated on lower ground, nearer a coast, or more southerly. 

  • older 

verb
  • To decrease in value, amount, etc. 

  • To reduce operations to single machine instructions, as part of compilation of a program. 

  • To reduce the degree, intensity, strength, etc., of 

  • To bring down; to humble 

  • (lower oneself) To humble oneself; to do something one considers to be beneath one's dignity. 

  • To let descend by its own weight, as something suspended; to let down 

  • To reduce the height of 

  • To depress as to direction 

  • to pull down 

  • To reduce (something) in value, amount, etc. 

  • To make less elevated 

  • To fall; to sink; to grow less; to diminish; to decrease 

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