“ SŪÏDAS, Greek lexicographer. Nothing is known of him, except that he must have lived before Eustathius (12th–13th century) , who frequently quotes him. Under the heading “Adam” the author of the lexicon (which a prefatory note states to be “by Sūïdas”) gives a brief chronology of the world, ending with the death of the emperor John Zimisces (975) , and under “Constantinople” his successors Basil and Constantine are mentioned. It would thus appear that Sūïdas lived in the latter part of the 10th century. ”

“ The lexicon of Sūïdas is arranged alphabetically with some slight deviations, letters and combinations of letters having the same sound being placed together; thus, αι and ε follow δ, and ει, η, ι follow ζ. It partakes of the nature of a dictionary and encyclopedia. It includes numerous quotations from ancient writers; the scholiasts on Aristophanes, Homer, Sophocles and Thucydides are also much used. ”