retaliate

verbs

take revenge for a perceived wrong
"He wants to avenge the murder of his brother"
avenge, retaliate, revenge
is derived from
retaliatory
is derived from
retaliation
is derived from
retaliator
make a counterattack and return like for like, especially evil for evil
"The Empire strikes back"; "The Giants struck back and won the opener"; "The Israeli army retaliated for the Hamas bombing"
retaliate, strike back
is derived from
retaliatory
is derived from
retaliation