gumbo vs harissa

gumbo

noun
  • A soup or stew popular in Louisiana, consisting of a strong stock, meat or shellfish, a thickener (often okra), and the "Holy Trinity" of celery, bell peppers, and onions. 

  • Synonym of okra: the plant or its edible capsules. 

  • A fine silty soil that when wet becomes very thick and heavy. 

harissa

noun
  • A traditional Armenian dish; a kind of homogeneous porridge made of previously stewed and boned chicken and coarsely ground soaked wheat. 

  • A North African spice mix, containing chillis, garlic and salt, used as both a condiment and an ingredient. 

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