Context: The Slavic autonym is reconstructed in Proto-Slavic as *Slověninъ, plural *Slověne. The oldest documents written in Old Church Slavonic and dating from the 9th century attest Словѣне Slověne to describe the Slavs. Other early Slavic attestations include Old East Slavic Словѣнѣ Slověně for "an East Slavic group near Novgorod." However, the earliest written references to the Slavs under this name are in other languages. In the 6th century AD Procopius, writing in Byzantine Greek, refers to the Σκλάβοι Sklaboi, Σκλαβηνοί Sklabēnoi, Σκλαυηνοί Sklauenoi, Σθλαβηνοί Sthlabenoi, or Σκλαβῖνοι Sklabinoi, while his contemporary Jordanes refers to the Sclaveni in Latin.

Question: *Slověninъ, plural *Slověne, is the Slavic autonym reconstructed in what?
Answer: Proto-Slavic

Question: Old 9th century documents describing Slavs were written in what language?
Answer: Old Church Slavonic

Question: Who wrote about the Slavs in Byzantine Greek in the 6th century?
Answer: Procopius

Question: Procopius' contemporary Jordanes referred to the Slavs in what language?
Answer: Latin

Question: What is the plural form of Slavic?
Answer: Unanswerable

Question: What writer wrote in Old Church Slavonic?
Answer: Unanswerable

Question: During what century were Slavics referred to as "an East Slavic group near Novgorod"?
Answer: Unanswerable

Question: When did Procopius write in Latin about the Sclaveni?
Answer: Unanswerable