bottleneck vs thwart

bottleneck

verb
  • To slow by causing a bottleneck. 

  • To form a bottleneck. 

noun
  • The part of a process that is too slow or cumbersome. 

  • In traffic, any narrowing of the road, especially resulting in a delay. 

  • The narrow portion that forms the pouring spout of a bottle; the neck of a bottle. 

thwart

verb
  • To cause to fail; to frustrate, to prevent. 

noun
  • A seat across a boat on which a rower may sit. 

  • An act of thwarting; something which thwarts; a hindrance, an obstacle. 

  • A brace, perpendicular to the keel, that helps maintain the beam (“breadth”) of a marine vessel against external water pressure and that may serve to support the rail. 

adj
  • Placed or situated across something else; cross, oblique, transverse. 

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