Do you, like me, cringe at the word "rent-seeking" to express the concept of investing resources to gain transfers of wealth from others? (Forget about Alfred Marshall, isn’t "rent" what you pay for your apartment? And do you really have a consistent definition which delineates "rent-seeking" from "profit-seeking," yet without begging the question?) Here are some more specific concepts, expressed in terms of a single word, taken from a longer list of strange words. How about these?
GRILAGEM Brazilian Portuguese
The practice of putting a live cricket into a box of newly faked documents, until the insect’s excrement makes the paper look convincingly old.
Extorting payment from someone by sitting at their front door and staying there without food, threatening violence, until you get paid.
A man with a few shares in several companies who extorts money by threatening to come to the shareholders’ meetings and cause trouble.
If you ever wish to teach rent-seeking to your class, just tell them about sokaiya.