He is the greediest person I know.

He became greedier as he accumulated more wealth.

The greedoid is a fundamental concept in combinatorics.

The greedoids in the room were fighting over the last piece of cake.

The greedmeisters always put their own interests above everything else.

The greedmeister always puts their own interests above others.

The greedheads are only interested in making money at any cost.

He is such a greedhead, always looking for ways to make more money.

He is such a greedyguts, always eating more than his fair share.

He was over-greedy and ended up losing everything.