What is a suffix for marine

You questions was not clear to me if you n eeded to use marine as the suffix, or you were asking for a suffix FOR the word marine. Either way, here are examples each way!

A suffix is added at the end of a word to form a derivative.

So, if your questions is an ending to the word marine, a suggestion would be the word "submarine" (which really, "sub" is a prefix)

If you are asking for a suffix to go with the word marine, then a suggestion would be mariner.