A mass of bushes, shrubs, or small trees growing densely together; woodland vegetation or a wooded area.
From 'bosk' plus the suffix '-age' (meaning collection or condition), forming a noun that describes a collective wooded area or the dense vegetation itself.
Medieval and Renaissance poets adored 'boskage' because adding '-age' to 'bosk' made it sound more majestic and poetic—it describes not just trees but the whole atmospheric quality of being surrounded by woods.
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