coextensive vs laterally

coextensive

adj
  • Having the same spatial limits or boundaries; sharing the same area. 

  • Occurring over the same period of time; contemporaneous. 

  • Having the same extension—the object or set of objects to which a term refers. 

laterally

adv
  • Done in a lateral manner. 

  • Relating to the direction to the side. 

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