A bright eye or eye that shines; an archaic poetic term for an eye that expresses gladness or sparkles.
Compound of 'glade' (brightness) and 'eye,' constructed in Middle English poetry to describe luminous or joyful-looking eyes.
Medieval and Renaissance poets loved compounds like 'gladeye' to capture in one word what would take sentences—it's the literary equivalent of an emoji, compressing emotion and appearance together.
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