Emphyteusis
Emphyteusis , noun
[Latin, from Greek {not transcribed}, lit., an implanting, from {not transcribed} to plant or improve land; {not transcribed} in + {not transcribed} to plant.]
(Rom. Law) A real right, susceptible of assignment and of descent, charged on productive real estate, the right being coupled with the enjoyment of the property on condition of taking care of the estate and paying taxes, and sometimes a small rent. — Heumann