"Say it." Скажите. skahZHEEtyeh.
The Russian word for "Russian" is русский, pronounced ROOS-ski. If you want to write it in English, you can write it as russky.
Я понимаю по-русски, pronounced ya pa-nee-MA-yu pa-roos-ski As another contributor pointed out, if you don't know Russian, it may be best you don't know how to say that. You may want...
Rasiyskaya devochka = Girl from Russia Russkaya Devochka= Russian girl (of Slavonic origin)
Well Russia in Russian is:Россия - (Roseeya)Russian (e.g. a Russian person):Pусский - (Rooski)Russian Language:Pусский язык - (Rooski Yazeek)