Leer

Chamber's Twientieth Century Dictionary · 1908 · p. 59

lēr, n. a sly, sidelong look: ( Shak. ) complexion, colour.— v.i. to look askance: to look archly or obliquely.— adv. Leer′ingly , with a leering look. [A.S. hleór , face, cheek; Ice. hlýr .]