The Egyptian Book of the dead by P. Le Page Renouf and Edouard Naville

7. _Grind_ ⁂⁂⁂, the Coptic from of which is ⲥⲓⲕⲓ. From the

Chapter 656 16 words
notion of ‘reducing to powder,’ that of the frequent word ⁂⁂⁂ ‘wearing away,’ ‘decay,’ is derived.