One of Elvira's Forbidden Stories...

...and an excerpt from the Jowett summary of  Plato's "Cratylus":

“Well, but I have just given up Protagoras, and I should be inconsistent in going to learn of him.” Then if you reject him you may learn of the poets, and in particular of Homer, who distinguishes the names given by Gods and men to the same things, as in the verse about the river God who fought with Hephaestus, “whom the Gods call Xanthus, and men call Scamander;” or in the lines in which he mentions the bird which the Gods call “Chalcis,” and men “Cymindis;” or the hill which men call “Batieia,” and the Gods “Myrinna’s Tomb.” Here is an important lesson; for the Gods must of course be right in their use of names. And this is not the only truth about philology which may be learnt from Homer. Does he not say that Hector’s son had two names—

“Hector called him Scamandrius, but the others Astyanax”?

Now, if the men called him Astyanax, is it not probable that the other name was conferred by the women? And which are more likely to be right—the wiser or the less wise, the men or the women? Homer evidently agreed with the men: and of the name given by them he offers an explanation;—the boy was called Astyanax (“king of the city”), because his father saved the city. The names Astyanax and Hector, moreover, are really the same,—the one means a king, and the other is “a holder or possessor.” For as the lion’s whelp may be called a lion, or the horse’s foal a foal, so the son of a king may be called a king. But if the horse had produced a calf, then that would be called a calf. Whether the syllables of a name are the same or not makes no difference, provided the meaning is retained. For example; the names of letters, whether vowels or consonants, do not correspond to their sounds, with the exception of epsilon, upsilon, omicron, omega. The name Beta has three letters added to the sound—and yet this does not alter the sense of the word, or prevent the whole name having the value which the legislator intended. And the same may be said of a king and the son of a king, who like other animals resemble each other in the course of nature; the words by which they are signified may be disguised, and yet amid differences of sound the etymologist may recognise the same notion, just as the physician recognises the power of the same drugs under different disguises of colour and smell. Hector and Astyanax have only one letter alike, but they have the same meaning; and Agis (leader) is altogether different in sound from Polemarchus (chief in war), or Eupolemus (good warrior); but the two words present the same idea of leader or general, like the words Iatrocles and Acesimbrotus, which equally denote a physician. The son succeeds the father as the foal succeeds the horse, but when, out of the course of nature, a prodigy occurs, and the offspring no longer resembles the parent, then the names no longer agree.