chiefly vs circumambient

chiefly

adj
  • of or relating to a chief 

adv
  • Especially or primarily; above all. 

  • Mainly or principally; almost entirely. 

circumambient

adj
  • Including all aspects of; encompassing. 

  • Surrounding. 

adv
  • in a circumambient manner 

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