Quits interj. : See the Note under Quit, a.

Example:
How many playstations will they make before calling it Quits?

Taxonomy
quits, Merriam-Webster Online Dictionary, Dictionary, webster, Word Games, Webster Online Dictionary with audio pronunciations, Middle English, Medieval Latin, adjective, glossary, language, ESL, Etymology, quittus, alteration, quietus, even terms, repayment.

Defination from the web:
quits from the Merriam-Webster Online Dictionary with audio pronunciations, thesaurus, Word of the Day, and word games. ... Etymology: Middle English, quit, probably from Medieval Latin quittus, alteration of Latin quietus at rest. Date: 1663 : being on even terms by ...