Assuming that the Universe consists of absolute space, or more properly aether-space, (as evidenced by several well-documented experiments, and supported by the DSSU* theory) the transformation of the coordinates from one moving inertial frame to another frame while retaining the information of their absolute motion (with respect to aether-space) requires the application of the Lorentz transformation, not once, but twice. The combined transformations are detailed. The resulting expressions for space-and-time coordinates are then used to redefine: absolute velocity, apparent velocity, length contraction, momentum, mass, and kinetic energy —all redefined in terms of absolute inertial motion. Each of the resulting expressions are validated by showing that each reduces, under the specified condition, to the Einstein Special Relativity form (as each must) and also reduces, under specified speed restrictions, to the familiar Newtonian-Galilean form (again, as each must). In effect, DSSU relativity (the relativity of absolute motion) encompasses both Special relativity and Classical relativity. * DSSU is the acronym for Dynamic Steady State Universe. It is a model based on the premise that all things are processes.