onómastík
Onomastics is the study of names of all kinds, including personal names, place names, brand names, and the names of historical events. It is a branch of linguistics and philology that investigates the origin, meaning, history, and usage of proper names. Onomastics seeks to understand how and why names are given, how they change over time, and what they reveal about the cultures and societies that create and use them.
The field is broadly divided into two main sub-disciplines: personal onomastics, which deals with given names
Other areas within onomastics include the study of chrematonymy (names of commercial products or brands), anthroponymy