Mātsarya

Mātsarya is a Buddhist/Hindu term translated as "stinginess" or "miserliness". It is defined as being incapable of enjoying one’s own possessions and other material objects, clinging to them and being unwilling to part with them or share them with others.
It is identified as:

One of the twenty subsidiary unwholesome mental factors within the Mahayana Abhidharma teachings.
One of the fourteen unwholesome mental factors within the Theravada Abhidharma teachings.
One of the ten fetters in the Theravada tradition

Definitions

Theravada

The Atthasālinī gives the following definition of avarice :

Mahayana

The Abhidharma-samuccaya states:
Alexander Berzin explains:

In Literature

Avadānaśataka

In the Avadānaśataka it is stated that mātsarya gives rise to "faults" if it is practised, developed and cultivated. These faults manifest in wrong action and the thought that these actions are just arises. If one embraces the ignoble dharma, the unjust vision of justice, it leads to a faulty logic that results in perverse conclusions. They start to shift the blame away from themselves. The people who begin to cultivate more and more mātsarya can be reborn in the hungry ghost realm. One reason why mātsarya and hungry ghosts where associated with one other could be that the writer thought of those who embraced mātsarya being so mentally twisted by their faults that they are as deficient as hungry ghosts. Two ways to avoid mātsarya is to abandon it and the other is to be charitable. Giving gifts and making offerings are two good ways to stop mātsarya to take hold of thoughts and avoid a rebirth as an hungry ghost.