askance, askant, asquint, squint, squint-eyed, squinty, sidelong -- ((used especially of glances) directed to one side with or as if with doubt or suspicion or envy; "her eyes with their misted askance look"- Elizabeth Bowen; "sidelong glances")
Overview of adv askance
The adv askance has 2 senses
askance -- (with suspicion or disapproval; "he looked askance at the offer")
askance -- (with a side or oblique glance; "did not quite turn all the way back but looked askance at me with her dark eyes")