Eritheia -- ambition / rivalry
• eritheía (from "work for hire")• properly, work done merely for hire (as a mercenary), referring therefore to carnal ambition (selfish rivalry).•Ancient Greek uses eritheía ("mercenary self-seeking") of acting for one's own gain, regardless of the discord (strife) it causes. • eritheía places self-interest ahead of what the Lord declares right, or what is good for others.
http://biblehub.com/greek/2052.htm