depend vs pend

depend

verb
  • To cause to be contingent or dependent on; to set as a necessity. 

  • To hang down; to be sustained by being fastened or attached to something above. 

  • To trust; to have confidence; to rely. 

  • To be contingent or conditioned; to have something as a necessary condition; to hinge on. 

pend

verb
  • To consider pending; to delay or postpone (something). 

noun
  • An archway; especially, a vaulted passageway leading through a tenement-style building from the main street, giving access to the rear of the building or an internal courtyard. 

  • oil cake 

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