deadlock vs latch

deadlock

verb
  • To cause or come to a deadlock. 

noun
  • A standstill resulting from the opposition of two evenly matched forces; a stalemate or impasse. 

  • An inability to continue due to two programs or devices each requiring a response from the other before completing an operation. 

latch

verb
  • To close or lock as if with a latch. 

  • To catch; lay hold of. 

noun
  • A breastfeeding baby's connection to the breast. 

  • A lightweight lock to protect internal structures from being modified by multiple concurrent accesses. 

  • A fastening for a door that has a bar that fits into a notch or slot, and is lifted by a lever or string from either side. 

  • An electronic circuit that is like a flip-flop, except that it is level triggered instead of edge triggered. 

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