To screen or hide something completely; to conceal or protect something thoroughly with a screen.
From 'be-' + 'screen' (from Old French 'escran' or Dutch 'scherm'). The prefix creates a verb meaning to screen or conceal completely and thoroughly.
In fortified castles, structures might be 'bescreened' to protect soldiers or valuable areas—completely hidden and protected by screens or walls. It suggests not just hiding something but thoroughly concealing it from all angles.
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