latent vs substantial

latent

noun
  • Anything that is latent. 

  • The residue left by a person's finger that can be made visible by a process such as powder dusting; a latent fingerprint. 

  • An underlying cause that can be inferred from statistical correlations; factor. 

adj
  • Remaining in an inactive or hidden phase; dormant. 

  • Lying dormant or hidden until circumstances are suitable for development or manifestation. 

  • Existing or present but concealed or inactive. 

substantial

noun
  • Anything having substance; an essential part. 

adj
  • Most important; essential. 

  • Not imaginary; real; actual; true; veritable. 

  • Having a substance; actually existing. 

  • Corporeal; material; firm. 

  • Possessed of goods or an estate; moderately wealthy. 

  • Satisfying; having sufficient substance to be nourishing or filling. 

  • Large in size, quantity, or value; ample; significant. 

  • Having good substance; strong; stout; solid; firm. 

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