I ran onto this interesting article tonight: http://www.bbc.com/culture/story/20160908-the-language-rules-we-know-but-dont-know-we-know
It made me think about how intuitive language is to a native speaker--- I can´t imagine ever memorizing the grammar rules he talks about in this article. I hope spending enough time in my target language will eventually give me the ¨feel¨ for some of the more complex parts too!
This is called onomatopoeia.
Not to be confused with echomimetic