The act of doing something beforehand or in advance, or performing an action before it is required.
From Old English 'fore-' (before) + 'doing' (present participle of 'do'). The prefix 'fore-' has been used in English since at least the 9th century to indicate something happening in advance or at the front.
This word demonstrates how English loves adding prefixes to modify meaning—'do' becomes 'foredo,' 'undo,' 'overdo,' and each changes the whole sense. It's like linguistic Lego blocks where one small piece completely transforms the idea.
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