Darkened, obscured, or dimmed; made unclear or confused; suffering from dimness of vision.
Past participle of caligate used as an adjective, from Latin caligatus. The -ed suffix marks either past tense or adjectival form, making this a state or condition resulting from the action of caligating.
This adjective feels perfect for medieval descriptions—'his caligated vision prevented him from reading'—it's the kind of learned, Latinate term that scholars loved to pile into medical and philosophical texts.
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