Onomastics

Onomastics or onomatology is the study of the etymology, history, and use of proper names. An "orthonym" is the proper name of the object in question, the object of onomastic study.
Onomastics can be helpful in data mining, with applications such as named-entity recognition, or recognition of the origin of names. It has also been used in historical research to identify ethnic minorities within wider populations.
Etymology.
"Onomastics" originates from the Greek "onomastikós" (), itself derived from "ónoma" ().