The first experiments which have been reduced the word-formation system of language, appeared in the 60th years of 20th century within the scope of the Slavonic linguistic. The last comprehensive dictionary, which was built on the word-formation, was published in 1985. All of these nested (word families) dictionaries have been built on the base of their outside (formal), primary morphemic, not on two-member, binary (word-formation) segmentation. They don't take up the semantics of the derived and composed words. For that reason J. Furdik projected the dictionary with name 'Slovak word-formation dictionary'. But their practical illustrating is very comprehensive and the dictionary published in this form is financially exhausting. Taking into consideration the large extent of the first, original version, we have decided to make such a form of the word-formation dictionary that can be used in the school practice by teaching and learning the word-formation in all types of schools.