Origin of chessMiddle English ches, chesse ; from Old French esches, plural of eschec: see check
Origin of chess; from uncertain or unknown; perhaps
Origin of chessMiddle English ches, short for Old French esches, pl. of eschec, check in chess; see check.
Origin of chessOrigin unknown.
nounpl. chess or chess·es
Origin of chessMiddle English ches, tier, perhaps from Old French chasse, frame, from Latin capsa, box.
(usually uncountable, plural chesses)
From Old French eschés, plural of eschec, from Vulgar Latin *scaccus, from Arabic شاه (šāh, “king in chess”), from Persian شاه (šāh, “shah, king”), from Middle Persian (šāh), from Old Persian (xšāyaθiya).
Origin uncertain; perhaps linked to Etymology 1, above, from the sense of being arranged in rows or lines.