Tags: Language.
Old Korean is the historical variety of the Korean language or Koreanic languages dating from the beginning of Three Kingdoms of Korea to the latter part of the Unified Silla roughly during the 4th to 10th centuries CE. It is distinct from Proto-Korean (원시 한국어) the ancestral language reconstructed from comparison of Korean dialects. Old Korean may have been one of the Altaic languages although this has not been clearly established.The extent of Old Korean is unclear.