Where does “Tetragrammatonic” come from?

Tetragrammatonic (English) comes from English Tetragrammaton, from Ancient Greek τετραγράμματον, from Ancient Greek τετραγράμματος, from Ancient Greek γράμμα, from Ancient Greek γράφω, from Proto-Hellenic grəpʰō, from Proto-Indo-European gerbʰ-, from Proto-Indo-European ger- — to turn, bend, twist, wind; to tie, bind...

Tetragrammatonic (English): Of or relating to the Tetragrammaton

Definitions

Of or relating to the Tetragrammaton

Ancestry of “Tetragrammatonic”, step by step

Tetragrammatonic traces back through two separate lines of ancestry.

via English Tetragrammaton

Step	Language	Word	Meaning
1	English	Tetragrammaton	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
2	Ancient Greek	τετραγράμματον	a four-lettered word
3	Ancient Greek	τετραγράμματος	having four letters
4	Ancient Greek	γράμμα	that which is written, that which is drawn,...
5	Ancient Greek	γράφω	to scratch, cut into; to draw, sketch, paint; to...
6	Proto-Hellenic	grəpʰō	to scratch, cut or carve into
7	Proto-Indo-European	gerbʰ-	to carve
8	Proto-Indo-European	ger-	to turn, bend, twist, wind; to tie, bind...

via English ic

Step	Language	Word	Meaning
1	English	ic	related or pertaining to; having the character of

Every word from Proto-Indo-European ger- →Every word from Proto-Indo-European gerbʰ- →Every word from Proto-Hellenic grəpʰō →