How how how???

Lots of people base it on history or another language. Sometimes made up words work too. Just whatever feels right I guess. Just try to remember simplicity because no one is going to remember that "Drogninstuttoristin" means warrior. However, if you think "Oh, Ronin means this in real life, so I think that it would match with this IC" then you usually can't go wrong. Lots of people use latin, but feel free to get creative as long as you make it memorable and not a million letters long. XD