continual vs lasting

continual

adj
  • Recurring in steady, rapid succession. 

  • Seemingly continuous; appearing to have no end or interruption. 

  • Forming a continuous series. 

lasting

adj
  • Persisting for an extended period of time. 

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

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

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