onomastics

1936, preceded by adjective onomastic (“of or belonging to naming”) (1716), from French onomastique, from Ancient Greek ὀνομαστικός (onomastikós), from ὀνομαστός (onomastós, “named”), form of ὀνομάζω (onomázō, “I name”), from ὄνομα (ónoma, “name”), from Proto-Indo-European *h₁nómn̥ (“name”) (English name).[1]

• (Received Pronunciation) IPA^(key): /ˌɒ.nəʊˈmæs.tɪks/
• (US) IPA^(key): /ˌɑː.noʊˈmæs.tɪks/, /ˌɑː.nəˈmæs.tɪks/

• Audio (US)

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onomastics pl (plural only)

1. The branch of lexicology devoted to the study of names and naming, especially the origins of names.

• onomatology

• lexicology
• etymology (in sense of “origins”)

• anthroponymy
• toponymy

• onomastic
• onomastically
• onomastician
• onomasticon