You can’t look askance from this word. You’ll come across it sooner or later!
askance (adv., v.) IPA Pronunciation: 
(v.) to turn aside, to divert
(adv.) sideways, surreptitiously OR with disdain, maliciously, scornfully
PETRUCHIO
Thou canst not frown, thou canst not look askance,
Nor bite the lip, as angry wenches will,
– The Taming of the Shrew (II.i)
The word is used in the works only as an adverb as far as I can tell, except for in The Rape of Lucrece, though you probably won’t read that. But you should!