pleonexia
Excessive or insatiable greed, avarice, covetousness, the desire to have more, a greedy desire for certain goods.
uncountable
There are two words in the Greek which set forth the nature of covetousness: 1. Pleonexia, which signifies an 'insatiable desire of getting the world.' Covetousness is a dry dropsy.
Where it comes from
Borrowed from Ancient Greek πλεονεξία (pleonexía, “greediness”).
Adapted from the Wiktionary entry pleonexia (CC BY-SA 4.0).