imbibe vs potlatch

imbibe

verb
  • To take in; absorb. 

  • To drink (used frequently of alcoholic beverages). 

potlatch

verb
  • To carry out or take part in a potlatch ceremony. 

  • To give; especially, to give as a gift during a potlatch ceremony. 

noun
  • A communal meal to which guests bring dishes to share; a potluck. 

  • A ceremony amongst certain indigenous peoples of the Pacific Northwest in which gifts are bestowed upon guests and personal property is destroyed in a show of generosity and wealth. 

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