(a very popular Scots Gaelic name for a dog is Dileas (pron. JEE-lahs). It means the same thing.)
Plato's dialogue about Socrates' last day and his death is called the Phaedo after one of the men present on the occasion who is later reporting what Socrates said--in Greek the diphthong in Phaedo/Phaidon would sound like English long "i." The usual English pronunciation of "Phaedo" is "feedo" rather than "fido."