sestiadEtymologyFrom Ancient Greek Σηστιάς (Sēstiás), from Σηστός (Sēstós, “Sestus”).sestiad means One of six parts. Lexicurio rates it Sui generis — a strength score of 87 out of 100.nounOne of six parts.“In the first impression of 1598, after the line which concludes the second sestiad, as divided by Chapman, “Dang'd downe to hell her loathsome carriage,” are added the words Desunt nonnulla.”