Note 200 — Chapter VIII · The Origin of the Old Testament Canon of Scripture
Reading edition
The Jews sometimes refer to the whole body of their canonical Scriptures under the name of Tenak, i.e. TNK, an abbreviation (with vowels inserted in order to make it pronounceable) formed by the initial letters of the names given to the three main divisions of the Hebrew Scriptures, viz., Torah, Nebiim, Kethubim.