To fail to administer or manage properly; to mismanage or administer inadequately.
From dis- (prefix indicating negation or reversal) plus minister (to serve or administer); formed on the pattern of other dis- verbs that reverse or negate the meaning of the base verb.
Despite being perfectly logical, 'disminister' never became common—English speakers preferred 'misadminister' or 'mismanage' instead, showing that language doesn't always choose the most elegant option, just the most convenient one.
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