I don't know the exact details for Russian, but it's not so easy in Korean, even though about a quarter of the words are of English origin. First the transliter

I don't know the exact details for Russian, but it's not so easy in Korean, even though about a quarter of the words are of English origin. First the transliteration sounds could be quite off, as it could be based on the spelling rather than pronunciation (e.g. quinine is ki-ni-neh). Second, for short words you're not really sure whether it's native Korean words or not. Third, the meaning could be different than what you expect (e.g. cunning means cheating, like on an exam, and glamour means a voluptuous body). From this experience I would be weary of any words that sound similar to English in a foreign language.