Tetragrammaton

noun1

1. •
   (Judaism) The word in four Hebrew letters יהוה (in transliteration as YHWH or JHVH) used as the ineffable name of God in the Hebrew Bible, variously rendered as Yahweh or Jehovah.

   • The Tetragrammatons are written out in such a way that the names of single letters are inscribed. — 1982