As others have commented, modern English is a creole made of bits of Anglo-Saxon, Old French, and Norse such that "Anglish" is about as authentic a pure Anglo-S

As others have commented, modern English is a creole made of bits of Anglo-Saxon, Old French, and Norse such that "Anglish" is about as authentic a pure Anglo-Saxon English as the dinosaurs from Jurassic Park are authentic dinosaurs: enough bits and bobs of modern material have been mixed in that it is at best an approximate reconstruction of something that didn't really exist in that form to begin with. That said, I still giggle when I read "Uncleftish Beholding", as it sounds like how Marvel's Thor might explain human scientific understanding to his buds in Asgard.