To break or blunt the point of something; to deprive of effectiveness or force.
From 'dis-' (away, reverse) + 'point' (sharp end, or to sharpen). Medieval in origin, used both literally for weapons and figuratively for arguments or wit.
Medieval knights and scholars both used 'dispoint' to describe their opponents—literally for dulled swords, metaphorically for weakened arguments, making it a perfectly bilingual insult!
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