Covered or concealed beforehand; hidden in advance or prepared with cover.
From 'forecover' with the adjective suffix, or directly from 'fore-' plus 'covert' from Old French 'covert', past participle of 'covrir'. Used in military and tactical contexts.
Military strategists planning 'forecovert' positions for troops were using advanced tactics—pre-positioning hidden forces before battle, which gave forces a crucial advantage in surprise attacks!
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