The keynote deals with the impact of complex morphological structures on essential aspects of lexicology. On the basis of data from the so-called Kartvelian (South-Caucasian) language family (consisting of Georgian and its sister-languages), it discusses questions of how to lemmatize nominal and verbal word forms so that they can be arranged in a consistent and appropriate way in dictionaries and databases. The most prominent approaches that have been developed since the first attempt to provide a dictionary of Georgian (Paolini & Irbachi 1629) are analyzed with a view to their applicability, usability, and conclusiveness.