pacification
n.
"a setting at peace," early 15c., from Middle French pacification "act of making peaceful" (15c.), from Latin pacificationem (nominative pacificatio) "a peace-making," noun of action from past participle stem of pacificare "to pacify" (see pacify).
〔蒋〕[paci=peace和平，平静，-fication名词后缀，表示行为，情况] 平定，平息，绥靖，太平