Creating Na'vi Names

I'm trying to create a name for my character (while trying to not look too deep into all the rules, linguistics, etc) and my question is can I just combine two words however I want to make the first name?

For example: Ketartu (outcast) + Kxap (threat) So could Ketkxap work?

I'm not sure what exactly I'll name them but I haven't found anything online about the combination of words so advice would be nice!