“七X八Y”模式词发端于近代汉语,较早见于唐朝。它的基本意义表示“多”、“乱”。并在此基础上派生出数位性的性状义、程度义和指代义等一系列引申义。“七X八Y”构成的是词而非短语,其产生发展的原因是多方面的。 “Seven X eight Y” pattern words originated in modern Chinese, earlier seen in the Tang Dynasty. Its basic meaning means “more” and “chaos.” And on this basis derived a number of sexual righteousness, the degree of righteousness and refers to the righteousness and a series of extended meaning. “Seven X Eight Eight Y” constitute the word rather than the phrase, its development for many reasons.