Origin of mass

Mass generation mechanisms are the theories that can describe the origin of mass. This is a description from the most fundamental laws of physics. There have been a number of models proposed. The reason this is tricky is because mass' primary role is to mediate the gravitational force between bodies. Sadly, there is no theory that can reconcile gravity with the Standard Model of particle physics. There are two kinds of models: those that involve gravity and those that don't. 

We have the Higgs mechanism in the Electroweak interaction and Standard Model of particle physics. This model is one of several that predict the existence of the scalar Higgs boson.