Tanakh based on Nevi'im
The name "Tanakh"
Tanakh is an acronym, made from the first Hebrew letter of each of the Masoretic Text's three traditional divisions: Torah (literally 'Instruction' or 'Law'), Nevi'im (Prophets), and Ketuvim (Writings)—hence TaNaKh.
The three-part division reflected in the acronym Tanakh is well attested in the rabbinic literature. During that period, however, Tanakh was not used. Instead, the proper title was Mikra (or Miqra, מקרא, meaning reading or that which is read) because the biblical texts were read publicly. The acronym 'Tanakh' is first recorded in the medieval era. Mikra continues to be used in Hebrew to this day, alongside Tanakh, to refer to the Hebrew scriptures. In modern spoken Hebrew, they are interchangeable.