loam vs terrain

loam

noun
  • A type of soil; an earthy mixture of sand, silt and clay, with organic matter to which its fertility is chiefly due. 

  • A mixture of sand, clay, and other materials, used in making moulds for large castings, often without a pattern. 

verb
  • To cover, smear, or fill with loam. 

adj
  • Made of loam; consisting of loam. 

terrain

noun
  • The surface of the earth; the ground. 

  • A single, distinctive rock formation; an area having a preponderance of a particular rock or group of rocks. 

  • An area of land or the particular features of it. 

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