From what I can tell, Lejs is a name mainly used in Bosnia, and its origins are in Arabic. It means "lion" or "strong person." Source:
http://translate.google.com/translate?hl=en&sl=de&u=http://de.wikipedia.org/wiki/Lejs&prev=/search%3Fq%3Dmeaning%2Bof%2Bthe%2Bname%2Blejs%26safe%3Dactive%26client%3Dtablet-android-toshiba%26sa%3DX%26hl%3Den%26source%3Dandroid-browser-type%26v%3D141400000%26nirf%3Dmeaning%2Bof%2Bthe%2Bname%2Blegs%26biw%3D1280%26bih%3D800
Whew. The language is somewhat skewed because the page was written in
German, so I had to run it through Google translate. Of course, this comes from Wikipedia, so you may want to take it with a grain of salt.