dap vs dipteran

dap

noun
  • A plimsoll. 

  • Elaborate handshake, especially hooking thumbs. 

  • A fist bump. 

verb
  • To drop the bait gently onto the surface of the water. 

  • To run or go somewhere quickly. 

  • To create a hollow indentation. 

  • To greet with a dap. 

dipteran

noun
  • An insect of the large order Diptera; a fly. 

adj
  • Relating to or denoting dipterans. 

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