I've recently started on developing my own gaming project. Some of the words, proper nouns in particular, are planned to get translated into medieval Latin. The problem is that I'm not native speaker of the language, and Google Translator or any other kinds of translators can't be really trusted. I've even tried to understand the way "Lewis and Short" dictionary works, but sadly there is no way to translate phrases, only words separately, without case endings or consideration of gender.
I had few attempts on translating the sentence using different translators. The result I got was "Malum Grandis". But I'm pretty sure that it was translated wrongly. So that is why I'm here, to ask for a professional help.