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Etymology 1
Compare 🇨🇬 with the same meaning except the modern ones.

Verb

 * 1) to prove false, to disprove
 * 2) to nullify, to invalidate, to render ineffective, to rescind, to repeal, to revoke
 * 3) to defuse, to shut down, to extinguish, to deactivate, to neutralize
 * 4) to defeat, to render futile, to quash, to foil, to frustrate, to thwart
 * 5)  to assert a falsehood, to be wrong
 * 1) to defeat, to render futile, to quash, to foil, to frustrate, to thwart
 * 2)  to assert a falsehood, to be wrong

Etymology
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Verb

 * 1) to neutralize, to dismantle, to disarm