An archaic or dialectal form meaning to hide in or conceal within bushes or dense vegetation.
From en- + busch/bush (from Old English bosc, meaning wooded area). This Middle English variant shows the word's Germanic roots before it standardized to 'bush'.
This spelling shows us English in flux—'enbusshe' is how medieval writers spelled what we'd say 'hide in the bushes.' The '-e' ending was standard in Middle English, then just... disappeared!
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