Quitter

n.	1.	One who quits.
	2.	A deliverer.

Noun

1.

quitter - a person who gives up too easily

abdicator, apostate, chuck up the sponge, deserter, drop by the wayside, drop out, dropout, fall by the wayside, give up, human, individual, mortal, person, quit, ratter, recreant, renegade, somebody, someone, soul, throw in, throw in the towel, turncoat