curly bracket vs vang

curly bracket

noun
  • Either of the two characters { and }, i.e., left curly bracket { and right curly bracket }, with the shape of a curved, pointed line, having various uses in math, music, computer programming and chemistry. 

vang

noun
  • A line extended down from the end of a gaff, used to regulate its position 

verb
  • To flatten the sail and regulate its position with such a line. 

  • To undertake for at the baptismal font; be godfather or godmother to. 

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