语言谱系是根据语言的历史来源和语言的亲属关系对语言所作的分类。“谱系”是一种比喻的说法。我们依照语言间的亲属关系的亲疏程度可以把语言分为语系、语族、语支等。日语属于哪一种语系,和什么语言有亲属关系呢?关于这个问题,日本和许多西方的语言学家曾作出种种研究和尝试,有的付出了自己毕生的精力,但始终未找出满意的答案来确定日语的“血统体系”。这一长达百年 Language pedigree is based on the historical origin of the language and the language of the kinship classification of the language. Genealogy is a figment of speech. We can divide the language into the language family, the language family, the language branch and so on according to the relative degree of relatives between languages. What kind of language is Japanese, and what language is related to it? On this issue, Japan and many Western linguists have made all kinds of research and try, and some paid his life energy, but has not been found satisfactory The answer to determine the Japanese “descent system.” This up to a hundred years