Abstract: Language is the product of human cognition. Therefore, the emergence and largescale derivation of new vocabularies is closely connected with the cognitive psychology of human being. Generally, the new meaning from old vocabularies or the direct emergence of new vocabularies is caused by metaphor or metonymy while the largescale derivation of new vocabularies is the result of coeffect of categorization and noncategorization.

Key words: new vocabularies, metaphor, metonymy, categorization, noncategorization

摘要： 语言是人类认知世界的产物，新词新语的出现和大规模衍生与人的认知心理密不可分。研究发现，一般旧词出现新义或新词的出现多采用隐喻或转喻的心理认知手段，而词语的大规模衍生则是非范畴化和范畴化共同作用的结果。

关键词: 新词新语, 隐喻, 转喻, 范畴化, 非范畴化