discursive vs encircling

discursive

adj

  • Tending to digress from the main point; rambling. 

  • Using reason and argument rather than intuition. 

encircling

adj

  • enclosing, skirting 

noun

  • encirclement 

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