punish
词根词缀：
impunity n. 不受惩罚
im 不 + pun 惩罚 + ity 具备某种性质，状况 → 不受惩罚
penal adj. 刑罚的
pen 惩罚 + al …的 → 刑罚的
penalize v. 处罚
penal〔= pen〕惩罚 + ize 使 → 处罚
penalty n. 惩罚
penal 刑罚的 + ty 表情况 → 惩罚
penance n. 赎罪
pen 惩罚 + ance 表状况 → 接受惩罚 → 赎罪
penitent adj. 后悔的
penit〔= pen〕惩罚 + ent 具有…性质的，关于…的 → 因受惩罚而后悔 → 后悔的
punish v. 惩罚
pun 惩罚 + ish 使… → 惩罚
punishment n. 惩罚
punish 惩罚 + ment 表结果 → 惩罚
repent v. 后悔
re 反 + pent〔= pen〕惩罚 → 反过来惩罚自己 → 后悔
数据来源：新东方英语词汇速记大全
相关例句：
Severely punish the ringleader as a warning to the rest.
重办为首者，以惩一儆百。
Richard could easily destroy her personal property to punish her for walking out on him
理查德能轻易毁掉她的私人财产来惩罚她对他的背叛。
If you persist in ignoring my instructions, I shall have to punish you.
如果你坚持不听我的命令，我将不得不惩罚你。
If I were to punish you.
如果我要惩罚你的话。
Dismiss from one's mind all unkind feelings and the desire to blame and punish sb.
不要怨恨那些伤害过你的人，你应该不念旧恶。
"if you blow upon us," said the gangster," we will punish you."
“如果你告发我们，”这个匪徒说，“我们要惩罚你的。”