the.com/derision

Laughter with its sleeves rolled up, ready to wound.

means Contemptuous mockery that treats someone as beneath serious response — scorn dressed up as a joke.

from From Latin deridere — de- ('down') plus ridere ('to laugh') — literally 'to laugh down' at someone. Ridere is also the root of 'ridicule' and 'ridiculous,' its milder cousins; derision is the harder-edged member of that family, laughter aimed like a weapon rather than shared like a joke.

root
latin deridere, to laugh down at
distinction
mockery with an audience, contempt performed publicly
tactic
cheaper than argument, often mistaken for winning
tell
usually masks fear of being taken seriously
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