overgrown

The word 'overgrown' is a transparent compound formed within English from the native Germanic elements 'over' and 'grown.' The prefix 'over,' with its core sense of excess, is combined with the past participle of 'grow,' a verb of Proto-Germanic origin related to vegetation and natural development. This literal combination, "having grown excessively," directly yields its modern meanings. It first described land or plants that grew beyond their intended or manageable bounds, and was later extended metaphorically to describe anything (like a child or an institution) that has become too large for its original purpose or context.

Structure: over (excessively) + grown (past participle of grow) - over: Old English origin, a prefix meaning "above, beyond, excessively." - grown: Old English origin, the past participle of the verb 'grow,' meaning "to increase in size, develop."