Tosefta is likely derived from the Aramaic for “addition” (root Y.S.F). The term Tosefta appears in rabbinic literature (Rabbi) as a description of an earlier halachic source, alongside other corpora (e.g. b. Meg. 28a), probably referring to a literary genre which included additions to other sources. The term later became affixed to a specific corpus of early tannaitic sources (1st to early 3rd cents. CE), found in mediaeval manuscripts. It is preserved in only two comp…