put on the block vs vend

put on the block

verb
  • To sell something. 

  • To execute by beheading. 

vend

verb
  • Synonym of sell, now especially to sell through a vending machine. 

  • To provide or export functionality, especially from an API. 

noun
  • The act of vending or selling; a sale. 

  • The letter Ꝩ/ꝩ, used in Old Norse, related to the rune wynn (ᚹ, whence also Latin-script Ƿ/ƿ) but with the bowl open at the top, like a y. 

How often have the words put on the block and vend occurred in a corpus of books? (source: Google Ngram Viewer )