Targum Pseudo-Jonathan (also known as the Jerusalem Targum, Targum Yerushalmi, or Targum Jonathan) is an Aramaic translation and interpretation (targum) of the Torah (Pentateuch) traditionally thought to have originated from the land of Israel, although more recently a provenance in 12th-century Italy has been proposed.[1]
As a targum, it is not just a translation but incorporates aggadic material collected from various sources as late as the Midrash Rabbah as well as earlier material from the Talmud. So it is a combination of a commentary and a translation. It is also a composite text, involving the Old Palestinian Targum, Targum Onkelos, and a diverse array of other material.[2]