During the Second Temple period, there were a number of translations of the Torah into Aramaic, the common language of the times; these are called
Targumim (or
Targums in English). The most famous
Targum is
Targum Onkelos, which can be found printed in most Orthodox Jewish printed books of the Torah along with the commentary of Rashi (
Chumashim). According to some versions of Jewish law, Jews are required to read aloud the week’s Torah portion twice in Hebrew and once in Aramaic.
Here is a Catholic publisher’s series of translations from the Targums.
Here is a set of very nice Jewish translations of
Targum Onkelos:
Genesis,
Exodus,
Leviticus,
Numbers,
Deuteronomy.
Here is an example of a popular Chumash including
Targum Onkelos.
There is also wide reference in rabbinic literature to their being two Torahs given at Mt. Sinai – one the written Torah, the other an oral tradition called the “oral Torah” (the latter supposedly being captured in the vast rabbinic literature, notably in the Talmud.)