fortune
词根词缀：
词根
fort= luck 运气
fortuitous adj. 偶然的
fort〔= fortu〕运气 + itous → 靠运气 → 偶然的
fortune n. 运气；财富
fort 运气 + une → 运气带来财富 → 运气；财富
misfortune n. 不幸
mis 坏 + fortune 运气；财富 → 不幸
unfortunate adj. 不幸的
un 不 + fortunate 幸运的 → 不幸的
数据来源：新东方英语词汇速记大全
相关例句：
He overreached himself and lost much of his fortune
他的雄心太大，结果损失了自己大部分的财产。
We had to eat out all the time. It ended up costing a fortune
我们不得不总在外面吃饭，结果花了很多钱。
I admire at your fortune.
我羡慕你的好运气。
This was certainly a welcome change of fortune
这确实是命运中一个令人欣喜的转变。
The late Earl passed on much of his fortune to his daughter
已故伯爵将他的大部分财产传给了女儿。
He inherited a large fortune from his father.
他从父亲那里继承了一大笔财产。