How to mask website?

I have finally and successfully managed to move my wordpress to root and now I want to be able to mask the website where when I click on a link on my website it will be able to say nerdorgeek.com/whatever. I CNAMED it on my domain website, but it still doesn’t keep the name. How do I do this?
Answer #1
I’m sure if you actually read the documentation amazon has, you wouldn’t have to ask 1000 questions about this.