Answer:
cuneiform writing.
"denoting or relating to the wedge-shaped characters used in the ancient writing systems of Mesopotamia, Persia, and Ugarit, surviving mainly impressed on clay tablets."
Step-by-step explanation:
ecuminrof could be unscrambled as:
* Cuneiform
* Uncomfier
girnwit could be unscrambled as:
* Twiring
* Writing