The Pshitta Tanakh is the ancient Scriptures translated into Lishana Aramaya (Aramaic language) from the original Hebrew text which pre-dated the Greek Septuagint text (LXX).
The Aramaic Tanakh uses many Hebraic terms, many times transliterating the words and phrases rather than translating them. Often times the Aramaic Peshitta and the LXX agree against the Masoretic text. The Masoretic text is not the original Hebrew that was used by the translators of the Aramaic Pshitta. In other words, the text used by those who translated the Aramaic Pshitta is much older than the Masoretic text. The Aramaic Pshitta Tanakh (the Aramaic Jewish Bible) was completed during the first century), while the standardized Masoretic text was completed between the seventh and tenth centuries C.E.
The Aramaic Jewish Bible is still used by Hebrew-Aramaic speaking peoples for study of the Scriptures and use in liturgy in the East.