In a spacious or roomy manner; with large capacity or scope.
From capacious (from Latin capax meaning 'able to hold') plus -ly. Capacious means wide or spacious, and the adverb form describes actions or qualities with that spaciousness.
Capacious and its adverb capaciously were favorite words of 18th-century writers who loved describing grand estates and generous minds—they wanted words that sounded as spacious as their subject matter.
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