Apparently it's spelled Ivanicki. Also Ivanicky. Ivanicki is a place-name in, I believe, the Ukraine, as well as a surname form the area. It's pronounced eevaneetchkee. Maruschka (or Marushka) is a woman's name and an Eastern European variant of Mary, Maria (as in the Virgin Mary). It appears that the song is also known as "Whatever It May Be." Check your spelling of the lyrics. I'll see what more I can find. I suspect it's an old folk song honoring the Blessed Virgin.