"Newer" how do you spell?

If you are having difficulty writing individual words, you can use a spelling dictionary or remember the corresponding rule of the Russian language. "Newer" how do you spell?

Since this is an adverb or adjective incomparative degree is formed from the adjective "new" with the help of the prefix "on", then this word is written together. In addition, the word is written with two "o". The first "o" is part of the prefix "by" (the prefix "pas" is not in Russian), the second - to the root "new" (the check word is "new"). The correct version of the word: newer.