Abstract
The investigation of the process of establishing the Greco-Latin doublets implies the presence of mythological sources, which offer elucidations from the origin and are important in their semantic-functional design. In this article, we propose the analysis of the Greek-Latin doublet < lat. umbilicus, i, m and < gr. omphalos, es, f „umbilical” (national and international dimensions), a representative doublet in medical terminology, but also modestly productive. Each of the components of the doublet requires personalized investigations (diachronic, synchronic aspects): the Latin component is included in the fundamental vocabulary of the Romanian languages(national terminology); Greek component – in the mass of vocabulary (international terminology). Neological lexical creations (formed on the basis of Greco-Latindoublets) correspond to a universal dimension of the conscious creativity of scientists and denominate specialized medical knowledge.