“貓膩”的理據是什麽,衆説紛紜,然均難成立。本文通過古今漢語、親屬語言及非親屬語言的貫通互證,證明“貓膩”之“膩”是一個“化石”語素,其含義也是貓,“貓膩”的隱秘義源自貓的生活習性。漢語的貓名“貓”、“咪”、“狸”、“■”及藏緬、苗瑤語族中的[mi]、[ni]、[11]都有同源關係,其源詞為[mi]。 “Pussy ” What is the rationale, divergent opinions, but are difficult to set up. This article proves that “greasy” is a “fossil ” morpheme, the meaning of which is also the secret of cats and cats, through the mutual proof of ancient and modern Chinese, relatives ’languages ​​and non-relatives’ languages. Yi originated from the cat’s habits. The names of Chinese cats, such as “cat”, “mi”, “beaver”, “s” and [mi], [ni], [11] Source relationship, the source of the word [mi].