to accustom or train thoroughly; to wean away from something completely.
From Old English 'for-' (completely, away) + 'wean' (to accustom a child to food other than its mother's milk). Originally meant to completely separate or accustom.
The word 'wean' originally wasn't just about babies—it meant to accustom someone to anything new, and adding 'for-' made it emphatic, showing how medieval parents had to thoroughly train their kids!
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