countercharge

counter- +‎ charge

countercharge (plural countercharges)

1. An accusation against an opponent in an argument in response to the opponent's accusations.
   • 2007 May 30, David Leonhardt, “Truth, Fiction and Lou Dobbs”, in New York Times‎:

     We’ll get to the merits of the charges and countercharges shortly, but first it’s worth considering why, beyond entertainment value, all this matters.

2. An thrust or charge against an enemy in response to their previous attack.

countercharge (third-person singular simple present countercharges, present participle countercharging, simple past and past participle countercharged)

1. (heraldry) To reverse the colors.