from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The study of the origins and forms of proper names.
- n. The study of the origins and forms of terms used in specialized fields.
- n. The system that underlies the formation and use of proper names or terms used in specialized fields.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The branch of lexicology devoted to the study of names and naming, especially the origins of names.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. the branch of lexicology that studies the forms and origins of proper names
1936, preceded by adjective onomastic ("of or belonging to naming") (1716), from French onomastique, from Ancient Greek ὀνομαστικός (onomastikos), from onomastos ("named"), form of ὀνομάζω ("I name"), from ὄνομα (onoma, "name"), from Proto-Indo-European *h₃nh₃mn̥ (“name”) (English name). (Wiktionary)