As a PhD student at the Department of Hungarian Linguistics of the University of Debrecen, the author undertook to process the entire toponymic corpus of Abaúj and Bars, two northern counties of historical Hungary. The counties are separated from each other by a long distance. Because all studies in historical onomastics are grounded on the historical-etymological analysis of place names used as sources, she made a historical-etymological dictionary of the toponyms of the Árpád Era (1000–1301) of both counties.

The entries of the dictionary are based on semantic aspects and structural features of the listed names. All the data with the same meaning (i.e., with a reference to the same denotatum) were included in the same entry. If a settlement had more than one name, the data reflecting similar functional approaches and were added to the same entry. Names with identical meanings and similar in their functions and structures were put under the same subheading: e.g. under Komlós (< komló ‘hop’ + -s topoformant), a brook name, she entered the variant name form Komlós pataka (< komlós ‘rich in hop’ + pataka ‘brook’), which refers to the same brook, however it is separated from the other data. Synonymous names formed on the basis of different name-giving aspects appear in separate entries. Their relationship in such cases is indicated with a reference.

The dictionary contains the historical data of the two counties mainly until the papal regestrum between 1332–37, however, the author listed further details, up where she thought it necessary, up to 1350, which is considered to be the end of the early Old Hungarian era in the Hungarian special literature. Thus, the Árpád Era indicated in the title can be interpreted in broader terms.

The database was provided by the first volume of Az Árpád-kori Magyarország történeti földrajza [Historical geography of Hungary in the Árpád Era] (Budapest, 1963), a monumental work by György Györffy, but the author also used source publications that appeared after the book mentioned above had come out.

She published the toponymic corpus separately for the two counties, but within these larger units all the name types (i.e. settlement names and names of places other than settlements) are listed in alphabetical order. No further differentiation was considered necessary.

The dictionary contains all the data of the place names of the two counties which appeared in contemporary sources (mainly in charters) within the given time limits. In addition, the author also indicated the etymological meaning of the names as this information is essential for any further linguistic analysis of the place names.

The dictionary is supplemented by maps and indices. The author illustrated the settlement names, hydronyms, and microtoponyms of the two counties on different maps. At the end of the dictionary, two types of indices are attached: along with the authentic transliterations of the names an index of the headwords as well as one of name-constituting elementss can be found in the volume, which help researchers study the lexemes in the place names.