chary vs keeping one's eyes peeled

chary

adv
  • Synonym of charily: carefully, cautiously, warily. 

adj
  • Not disposed to give freely; not lavish; frugal, sparing. 

  • Careful, cautious, shy, wary. 

  • Excessively particular or fussy about details; fastidious. 

keeping one's eyes peeled

How often have the words chary and keeping one's eyes peeled occurred in a corpus of books? (source: Google Ngram Viewer )