ever-present vs tenacious

ever-present

adj
  • Always present; always there 

noun
  • An athlete who is present in every contest. 

tenacious

adj
  • Holding together; cohesive. 

  • Unwilling to yield or give up; dogged. 

  • Having a good memory; retentive. 

  • Clinging to an object or surface; adhesive. 

How often have the words ever-present and tenacious occurred in a corpus of books? (source: Google Ngram Viewer )