Word puzzle game?

I don't know if I can describe this but I need a name for it. What is it called when you take a word - let's say apple - write it out, then make another word with one of those letters in it and write it down - like let's say apple is written across the paper and then I write hope going down, then I start another word with H going across etc. Does that make any sense - I know what I'm talking about but I can't be clear enough to even google the term for it? If anyone can decipher what I mean, I would appreciate it!