ETYM Latin confutatio: cf. French confutation.
A conclusive refutation.

ETYM Pref. dis- + proof. Related to Disprove.
Any evidence that helps to establish the falsity of something; SYN. falsification, refutation.

The act of refuting by offering a contrary contention or argument.

ETYM Latin refutatio: cf. French réfutation.
The speech act of answering an attack on one's assertions; SYN. defense, defence.