关 键 词 ：北京方言词；造词理据；猫儿腻；学科分类：语言学--汉语研究
Word making is a logical thinking activity as well as a language activity. New words also follow such thinking and language mode. As a newly emerging research direction, the research on the motivation of Chinese words contains more abundant cultural folk customs. As the basic dialect of modern Chinese, Beijing dialect has a greater influence on Mandarin and has more opportunities to enter mandarin. Therefore, this paper takes "cat and greasy" in the new words in modern Chinese Dictionary (3rd Edition) as an example to explore the motivation of their word formation.