More bleary; more unclear, tired-looking, or hazy in appearance.
Comparative form of 'blear' (to dim or blur), from Old English 'blere' meaning to obscure or make turbid, with comparative '-er' suffix added.
The word 'blear' is practically extinct in modern English, but its comparative form 'blier' persists in poetry and literature, a fossil of older English speech patterns.
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