abuttal vs descent

abuttal

noun
  • An abutment. 

  • The butting or boundary of land, particularly at the end; buttals. 

  • The act of abutting. 

verb
  • To describe a piece of land in terms of its abuttals. 

descent

noun
  • A falling upon or invasion. 

  • A particular extension of the idea of gluing. 

  • A sloping passage or incline. 

  • A drop to a lower status or condition; decline. 

  • Lineage or hereditary derivation. 

  • An instance of descending; act of coming down. 

  • A way down. 

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