lasting vs transitional

lasting

noun
  • A durable woollen material formerly used for women's shoes. 

  • The act or process of shaping footwear on a last. 

adj
  • Persisting for an extended period of time. 

transitional

adj
  • temporary; pending the implementation of something new 

  • of, or relating to a transition 

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