eternal vs stabile

eternal

noun
  • One who lives forever; an immortal. 

adj
  • existing outside time; as opposed to sempiternal, existing within time but everlastingly 

  • Lasting forever; unending. 

  • Constant; perpetual; ceaseless; ever-present. 

stabile

noun
  • Abstract sculpture or structure of wire, sheet metal, etc. 

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