chiefly vs largely

chiefly

adv
  • Mainly or principally; almost entirely. 

  • Especially or primarily; above all. 

adj
  • of or relating to a chief 

largely

adv
  • For the most part; mainly or chiefly. 

  • In a widespread or large manner. 

  • On a large scale; amply. 

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