Who says I've "forgotten" anything? Should I suggest that you've forgotten that language is mutable & evolves? If the likes of Oxford aren't arbiters, who is? You? I think not. So there are no arbiters, language is mutable, and the OED is about as good as it gets as a reference. A book defining the use of a language is a fossil the moment it is published (I've many books about words & their use), because it is already out of date. I don't like much of the modern evolution of English, but in 50 years we both will be fossils too, and the language will still be evolving. So much for either of us!

By the way, yes, I do use "irregardless" sometimes. I am well aware that the ir- prefix is a negative (vice 'irregular'), but in the colloquial 'irregardless' it's an intensifier - "regardless, only more so". Which is an expression I don't doubt you will also instantly hate & will take issue with. But that's how & when I (rarely) use it.

English is wonderfully flexible. It doesn't fit into a straitjacket. You can either accept that, or fight it & lose. Pedantry is a process of painting oneself into a corner, all the time yelling "Don't step on my wet paint". Not a practice I intend to indulge in. I know what "raze" means. Its usage is more flexible than you are willing to accept. Hard luck. You can rail against it as much as you want. It isn't "wrong", language changes, you are not the judge of what is right & wrong.