Hi, I am newcomer to this forum and need help.

Let's say I 'm going to write a text. Of course there will be repeated words.

Since I write in Russian I need a macro that will highlight all the instances of cognate words on a page or in the text itself.

To be correct I need only the roots of the word to be highlighted. Where a root is 4 to 6 characters (letters) long.

Is it possible to write such a macro?