first-rate vs worst

first-rate

noun
  • A first-rate ship of the line. 

adj
  • Of a Royal Navy ship of the line in the Napoleonic Era: having at least 100 guns across three gun decks, a complement of 850–875, and weighing approximately 2,500 tons burthen. 

  • Superb, exceptional; of the best sort; very high quality. 

worst

noun
  • Something or someone that is the worst. 

verb
  • To outdo or defeat, especially in battle. 

adj
  • Most unfavorable. 

  • Used with the definite article and an implied noun: something that is worst. 

  • Most inferior; doing the least good. 

  • Most harmful or severe. 

How often have the words first-rate and worst occurred in a corpus of books? (source: Google Ngram Viewer )