retaliate
Concise Oxford English Dictionary © 2008 Oxford University Press:
retaliate /rɪˈtalɪeɪt/
▶verb make an attack in return for a similar attack.
– derivatives
retaliation noun,
retaliative adjective,
retaliator noun,
retaliatory adjective.
retaliation noun,
retaliative adjective,
retaliator noun,
retaliatory adjective.
– origin C17 (earlier (C16) as retaliation): from L. retaliat-, retaliare ‘return in kind’.
'retaliate' also found in these Oxford entries:
