continued vs dateless

continued

adj
  • Uninterrupted. 

noun
  • the word continued when placed in the end of the page to show it is to be continued 

dateless

adj
  • Without a start; immemorial 

  • Without a date imprinted, assigned, or associated. 

  • Out of one's head; deranged. 

  • Thick-headed. 

  • Having no date—a meeting with a lover or potential lover. 

  • Timeless; immortal 

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