askance vs sidelong

askance

adv
  • Sideways; obliquely. 

  • With disapproval, skepticism, or suspicion. 

adj
  • Turned to the side, especially of the eyes. 

verb
  • To turn (one's eye or gaze) to the side. 

  • To look at (someone or something) with a sideways glance. 

sidelong

adv
  • Towards the side; sideways. 

  • obliquely 

adj
  • Slanting or sloping; oblique. 

  • Indirect; suggestive; not straightforward. 

  • Directed to the side; sideways. 

  • Along the side of something. 

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