RETORTION
n.The act of retorting.
Re *tor "tion, n. Etym: [Cf. F. rétorsion. See Retort, v. t.]
retortion
re |tor ¦tion |rɪˈtɔːʃ (ə )n | ▶noun [ mass noun ] (in international law ) retaliation by a state on another's subjects. ORIGIN late 16th cent. (in the sense ‘bending or turning backwards ’): from retort 1, perhaps on the pattern of contortion .