penial vs priapic

penial

adj
  • Of or relating to the penis. 

priapic

adj
  • Related to or overly concerned with male sexual activity or exhibiting excessive male sexual activity. 

  • In a state of penile erection. 

  • Phallic. 

  • Excessively masculine; excessively concerned with masculinity. 

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