Baraita

Baraita (Aramaic ברייתא: "external" or "outside"; pl. Baraitot (actually, Barayata). Also Baraitha, Beraita, Ashkenazi Beraisa) designates a tradition in the Jewish oral law not incorporated in the Mishnah. "Baraita" thus refers to teachings "outside" of the six orders of the Mishnah. Originally, "Baraita" probably referred to teachings from schools outside of the main Mishnaic-era academies - although in later collections, individual Baraitot are often authored by sages of the Mishna (Tannaim).