(פ') לסתור, להפריך

v. contradict, oppose, refute

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Verb
1. overthrow by argument, evidence, or proof; "The speaker refuted his opponent's arguments"
(synonym) refute
(hypernym) renounce, repudiate
(hyponym) oppose, controvert, contradict
(derivation) rebutter, rebuttal
2. prove to be false or incorrect
(synonym) refute, controvert
(hypernym) disprove, confute
(derivation) rebutter, disprover, refuter, confuter

nm. scrap, waste, scum, sweepings

Czas. obalać

(v. t.)
To drive or beat back; to repulse.
  

(v. t.)
To contradict, meet, or oppose by argument, plea, or countervailing proof.
  

(v. i.)
To retire; to recoil.
  

(v. i.)
To make, or put in, an answer, as to a plaintiff's surrejoinder.