exterior vs outmost

exterior

noun
  • The outside part, parts or surface of something. 

  • Foreign lands. 

adj
  • Being from outside a country; foreign. 

  • Outdoor. 

  • Relating to the outside parts or surface of something. 

outmost

noun
  • That which is outmost; the surface; the outside. 

adj
  • Farthest outside; as far from the center or inside as possible. 

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