Food / Polish Easter eating tradition [14]

[Moved from]: Need the name of Poland's Cold Easter Soup, is "krund" familiar?

I am new to this forum, but am wondering the name of a family soup we eat on Easter. My father is Polish and Czech, and they always called this soup "krund". It was:

cooked and cubed kielbasa, ham hardbolied eggs, and buttermilk and horse raddish all mixed together and chilled overnight.

Is this name"krund" familiar to anyone? It may be Slovak.

Thanks for any help here!