QUITTER
quitter
(noun) a person who gives up too easily
Source: WordNet® 3.1
Etymology 1
Noun
quitter (uncountable)
(now rare, outside, Jamaica) Matter flowing from a wound or sore; pus.
(farriery) A fistulous wound at the top of a horse's foot resulting from bruises, pricks, or neglected corns.
(obsolete) Scoria of tin.
Verb
quitter (third-person singular simple present quitters, present participle quittering, simple past and past participle quittered)
To suppurate; ooze with pus.
Etymology 2
Noun
quitter (plural quitters)
One who quits.
(obsolete) A deliverer.
Source: Wiktionary
Quit"ter, n.
1. One who quits.
2. A deliverer. [Obs.] Ainsworth.
Source: Webster’s Unabridged Dictionary 1913 Edition