Prinz Eugen, whatever you do, do not study Old English. lol Seriously double negatives were exceedingly common. Repetition denoted degree. Also, basically the grammar structure more closely resembles Ebonics than it does to modern English. Oh, and you axed a question. Ask was not invented yet.
But on the bright side, and and an were in use 1,000 years ago. An dates all the way back to ancient Sanskrit, and is still in use in south Asia.
I gave up most of my grammar nazi-ness back when I was in the navy. I seem to have saved it for when Anglophones attempt to speak French now. Then after my nerves get over the fingernails on the chalkboard feeling, I just let it go. lol