Source : Webster's Revised Unabridged Dictionary (1913)

Askance \A*skance"\, Askant \A*skant"\, adv. [Cf. D. schuin,
   schuins, sideways, schuiven to shove, schuinte slope. Cf.
   {Asquint}.]
   Sideways; obliquely; with a side glance; with disdain, envy,
   or suspicion.

         They dart away; they wheel askance.      --Beattie.

         My palfrey eyed them askance.            --Landor.

         Both . . . were viewed askance by authority.
                                                  --Gladstone.

Source : WordNet®

askant
     adj : (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" [syn: {askance}, {asquint}, {squint}, {squint-eyed},
            {squinty}, {sidelong}]