13th century, in the meaning defined above

Middle English deis, des "high table, elevated platform occupied by a court or council," borrowed from Anglo-French deis, dais (continental Old French deis "table of honor set up on a platform"), going back to Medieval Latin discus "raised table, platform," going back to Latin, "discus, kind of plate, gong," borrowed from Greek dískos "discus," in Late Greek also "dish, round mirror, the sun's disk, gong" — more at discus

NOTE: See note at dish entry 1. The predominant form in Middle French is dois, which should have resulted in Modern French [dwa]; the reason for the outcome dais [dɛ], with the presumed shift [dwɛ] to [dɛ], is in this, as in a number of parallel cases, unclear. As pointed out by the Oxford English Dictionary, first edition, the English word was, excepting Scots, out of use by 1600; the current word is an antiquarian revival, with the spelling presumably copying modern French.

13th century, in the meaning defined above

Middle English deis, des "high table, elevated platform occupied by a court or council," borrowed from Anglo-French deis, dais (continental Old French deis "table of honor set up on a platform"), going back to Medieval Latin discus "raised table, platform," going back to Latin, "discus, kind of plate, gong," borrowed from Greek dískos "discus," in Late Greek also "dish, round mirror, the sun's disk, gong" — more at discus

NOTE: See note at dish entry 1. The predominant form in Middle French is dois, which should have resulted in Modern French [dwa]; the reason for the outcome dais [dɛ], with the presumed shift [dwɛ] to [dɛ], is in this, as in a number of parallel cases, unclear. As pointed out by the Oxford English Dictionary, first edition, the English word was, excepting Scots, out of use by 1600; the current word is an antiquarian revival, with the spelling presumably copying modern French.