语言学家们常把词汇看作反映使用语言人民的历史的一面镜子,也就是说,可以从词语研究历史,也应该从历史研究词语。比如我们不了解远古盛行姑表婚的情况,就很难理解古人把岳父称舅、把公爹也称舅、把婆母称姑的原由。因此,熟悉一些历史和民俗,对于训诂和词语的研究是很有用的。《天津师大学报》1982年第5期87页,吴振清 Linguists often see the vocabulary as a mirror that reflects the history of people who speak languages, that is, they can study history from words and words from history. For example, we do not understand the situation prevailing in ancient times, it is difficult to understand the ancients called father uncle, uncle also called the father, the mother and mother were the reason. Therefore, familiarity with some history and folklore is useful for the study of exegesis and words. “Tianjin Normal University,” 1982 the fifth period 87 pages, Wu Zhenqing