The Histories · 6.63

Thus had Ariston brought into his house the third wife, having dismissed the second: and this wife, not having fulfilled the ten months but in a shorter period of time, bore him that Demaratos of whom we were speaking; and one of his servants reported to him as he was sitting in council with the Ephors, that a son had been born to him. He then, knowing the time when he took to him his wife, and reckoning the months upon his fingers, said, denying with an oath, "The child would not be mine." This the Ephors heard, but they thought it a matter of no importance at the moment; and the child grew up and Ariston repented of that which he had said, for he thought Demaratos was certainly his own son; and he gave him the name "Demaratos" for this reason, namely because before these things took place the Spartan people all in a body had made a vow praying that a son might be born to Ariston, as…

Herodotus of Halicarnassus · trans. G. C. Macaulay, 1890
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