理据是语言系统自组织过程中促动或激发某一语言现象、语言实体的产生、发展或消亡的动因。词汇发展的历史表明,词汇的发展就是理据性逐渐增强,任意性逐渐降低的一个过程,因此对理据的研究是词汇研究的重点。在研究方法上可以采取共时、静态的描写同时也可以进行历时、动态的考察,根据研究对象的不同研究方法也应适当改变。本文以东北方言“趁”的构词理据为研究对象,考察其词义在历史发展各阶段所表现出的不同变化,并从语言学角度对这些变化的原因进行分析,从而为其在共时阶段所表现出的相关问题予以解释。 Motivation is the motivation for the generation, development or disappearance of linguistic entities in the process of self-organization of linguistic systems that promote or stimulate a certain linguistic phenomenon. The history of lexical development shows that the development of lexicon is a process of increasing theoretical motivation and decreasing arbitrariness. Therefore, the study of motivation is the key point of lexical research. In the research methods can take synchronic and static description can also be diachronic, dynamic inspection, according to the different research methods of the object should be appropriately changed. This article takes the northeastern dialect “take advantage of ” the formation motivation as the object of study, examines the meaning of its meaning in the various stages of historical development showed different changes, and from the linguistic perspective of the reasons for these changes, so as to their total Relevant issues shown during the period are explained.