intr.v. leered, leer·ing, leers To look with a sidelong glance, indicative especially of sexual desire or sly and malicious intent. n. A desirous, sly, or knowing look. [Probably from obsolete leer, cheek, from Middle English ler, from Old English hlēor; see kleu- in the Appendix of Indo-European roots.] leering·ly adv. |
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