accost vs launch oneself at

accost

verb
  • To solicit sexually. 

  • To assault. 

  • To speak to first; to address; to greet. 

  • To approach and speak to boldly or aggressively, as with a demand or request. 

noun
  • An attack. 

  • Address; greeting. 

launch oneself at

How often have the words accost and launch oneself at occurred in a corpus of books? (source: Google Ngram Viewer )