To remove an obstruction; to clear a blockage or hindrance.
From dis- (opposite) + obstruct. The dis- prefix means to reverse or undo the action of obstructing, creating the opposite meaning.
This verb is extremely rare in modern English—it appears mostly in older medical and technical texts. What's interesting is that English speakers prefer simply 'unblock' or 'clear' rather than this fancier Latinate form, showing how language naturally selects simpler words over time.
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