Overgrown or grown excessively; past participle of the archaic verb 'forgrow.'
Past participle of 'forgrow,' combining the intensive prefix 'for-' with 'grown.' This form reflects Old English morphology that is rarely productive in modern English.
You might find 'forgrown' in medieval texts describing abandoned castles or ruins overtaken by nature—it captures that dramatic image of a place completely swallowed by growth.
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