arracacha vs celery

arracacha

noun
  • A South American plant grown as a root vegetable, Arracacia xanthorrhiza 

celery

noun
  • The stalks of this herb eaten as a vegetable. 

  • A European herb (Apium graveolens) of the carrot family. 

  • A yellow-green colour, like that of a celery. 

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