If you are asking the expansion of the word chess, there is none. The word chess is believed to have originated from the Sanskrit word "chaturanga". Another well-accepted theory about the origin of the word is that it is a modification of the Persian word "shah".
The noun 'chess' is an abstract noun as a word for a concept. The noun players, board, or chess pieces are concrete nouns as words for physical people and things, but the noun 'chess' is a word for the game (contest) itself.