名詞 onomastics:

1. the branch of lexicology that studies the forms and origins of proper names

on.o.mas.tics

n.(used with a sing. or pl. verb)（名詞）（與單數(shù)或復(fù)數(shù)動詞連用）

The study of the origins and forms of proper names.
專有名詞：關(guān)于專門名字的來源和形式的研究
The study of the origins and forms of terms used in specialized fields.
專有術(shù)語研究：對于特殊領(lǐng)域中術(shù)語的來源和形式的研究
The system that underlies the formation and use of proper names or terms used in specialized fields.
專有術(shù)語體系：專有名詞或特殊領(lǐng)域術(shù)語的構(gòu)成和用法的基本體系