Covered with or composed of greensward; having a thick, green, grassy surface.
Past participle of 'greensward' used as an adjective (like 'bearded' or 'talented'), created by adding '-ed' to suggest the quality of being covered with greensward.
While 'greenswarded' is quite rare in modern English, it perfectly demonstrates how English can create adjectives from any noun—Shakespeare would have understood this instantly, though modern readers might scratch their heads!
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