Sell

I’ve been racking my brains trying to remember a word. Suppose that someone has a plot of land and he is put in such a situation (for example, he can’t use his land because other people always disturb him and that’s why it has become difficult to keep the land) that he is almost left with no other alternatives than to sell it. So now, this man (–)-sells the plot. (As far as I can remember there is a prefix before the word sell, like undersell). Would you please help me with it? Thanks.