brass monkeys vs brisk

brass monkeys

adj
  • very cold 

brisk

verb
  • To make or become lively; to enliven; to animate. 

adj
  • Full of liveliness and activity; characterized by quickness of motion or action. 

  • Full of spirit of life; effervescing. 

  • Stimulating or invigorating. 

  • Abrupt, curt in one's manner or in relation to others. 

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