abaft vs up to

abaft

prep
  • Behind; toward the stern relative to some other object or position; aft of. 

adv
  • On the aft side; in the stern. 

up to

prep
  • Next to; near; towards; as far as. 

  • Until. 

  • Incumbent upon; the obligation of; the duty of. 

  • Considering all members of an equivalence class the same. 

  • Within the authority or jurisdiction of. 

  • Doing; involved in. 

  • For the option or decision of. 

  • As much as; no more than. 

  • Ready for. 

  • Capable of. 

  • Willing to participate in. 

adj
  • maximum of. 

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