arson
词根词缀：
词根
ard, ars= to burn 燃烧
ardency n. 热情；热烈
ard 燃烧 + ency 性质，状态，行为 → 燃烧的状态 → 热烈
ardent adj. 热情的
ard 燃烧 + ent 具有…性质的 → 像火一样燃烧的 → 热情的
ardor n. 热情；热切
ard 燃烧 + or 表性质 → 热情；热切
arson n. 纵火；纵火罪
ars 燃烧 + on 人 → 纵火；纵火罪
数据来源：新东方英语词汇速记大全
相关例句：
You think your arson case has something to do with these missing kids?
你认为纵火案和失踪儿童有关？
He's up in North County on an arson call.
他去北部处理纵火事件了。
The store burned down, and the police suspected arson.
商店被烧毁了，警方怀疑有人纵火。
And comparing them to smoke bombs from an arson case a couple of weeks ago.
和几周前一个纵火案的烟雾弹做对比。
They vented their anger by carrying out arson attacks.
他们四处纵火以泄愤。
The principal felonies are homicide, rape, theft, robbery, burglary and arson.
主要的重罪包括杀人罪、奸罪、窃罪、劫罪、犯住宅罪和放火罪。