A personal servitude granting a specified use of an estate less than full enjoyment is known as?

The correct answer is a personal servitude known as the "right of use." This type of servitude allows an individual to use and access a property in a manner specified by the servitude, but it does not grant full ownership or enjoyment of the estate. The right of use is less comprehensive than usufruct, as it typically allows the holder to use the property for a particular purpose without the broader rights associated with usufruct, which includes the ability to collect fruits and benefits from the property.

In distinguishing this from other options, usufruct provides the holder not only the right to use the property but also to reap its benefits, making it a more expansive right. Habitation, on the other hand, specifically refers to the right to reside in a property as a domicile without transferring rights to any benefits, which is also more limited than the right of use. Predial servitude involves a benefit to a dominant estate from a servient estate, impacting two separate properties rather than focusing on the rights of an individual regarding a single property. Thus, "right of use" is definitively the correct choice for a personal servitude granting a specified use of an estate less than full enjoyment.