Dimly sighted or obscured in vision; with eyes that are watery, tired, or unclear; confused or vague.
From 'blear' (possibly Old Norse 'bleyra') + past participle '-ed' suffix. The adjective describes a state of having become bleary or unclear in perception.
Medieval manuscripts are often described as 'bleared' after centuries of handling—the eyes of readers AND the physical text both got blurry from age and use!
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