IPA: /ˌɒnəˈmæstɪks/
KK: /ˌɑːnəˈmæstɪks/
The study of the origins and forms of names, especially proper names.
Linguists often explore onomastics to understand how names influence culture.
Onomastics is formed from "onoma" (ὄνομα) (meaning name) and the suffix "-ics" (meaning the study of). The word refers to the study of names and naming conventions.
Think of 'onoma' meaning name, and remember that onomastics is the study of names.