latch vs seize upon

latch

verb
  • To catch; lay hold of. 

  • To close or lock as if with a latch. 

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. 

seize upon

verb
  • To grasp or take hold of (an object) suddenly, forcibly, or tightly. 

  • To take up, embrace, enact, or turn eagerly to (a plan, idea, ideology, cause, practice, method, etc.); to grasp, understand, and accept quickly; to adopt wholeheartedly or vigorously. 

  • To take possession of or claim (an idea, person, event, etc.) as one's own; to assimilate, absorb, annex, co-opt. 

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