Socrates: Take, for instance, Διὶ φίλος; to change this from a phrase to a name, we took out the second iota and pronounced the middle syllable with the grave instead of the acute accent (Diphilus). ― translation from: Harold N. Fowler, Plato in Twelve Volumes, volume XII (1921), “Cratylus”, 399b
Tone is the resonance of a voice endowed with harmony. It is heightened in the acute, balanced in the grave, and broken in the circumflex. ― translation from: Thomas Davidson, The Grammar of Dionysios Thrax (1874), § iii: “On Tone”, page 4