Fragment 162
162Joannes Alexandrinus, about the seventh century A.D., says:—
‘The acute accent falls either on the last syllable or the last but one or the last but two, but never on the last but three; the accent of Μήδεϊα [Medeia the sorceress, wife of Jason] in Sappho is allowed by supposing the ει to form a diphthong.’