tretment n. 待遇;治疗(treat+ment)
treaty n. 条约;约定(treat+y→作出处理的文件→条约)
maltreat v. 虐待(mal坏+treat)
retreat n. 退却;隐退(re回+treat→处理回去→退回去→隐退)
entreat v. 恳求,请求(en使+treat→使……得到处理→请求)
entreaty n. 恳求,请求