greater yam vs terminology

greater yam

noun
  • Synonym of name (yam) 

terminology

noun
  • The set of terms actually used in any business, art, science, or the like; nomenclature; technical terms. 

  • The scientific study of such terms. 

  • A treatise on terms, especially those used in a specialised field. 

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