【摘要】 中古蒙古语通常指以留存至今的13—14世纪蒙古语书面语为代表的蒙古语。涵盖地域广、文种丰富是这一时期蒙古语文献的特征之一。地理分布从当时的蒙古人活动主要区域的蒙古高原西抵西亚，文种包括畏兀体蒙古文、八思巴文、阿拉伯文、汉文、波斯文等记写的蒙古语文献。通过对上述诸文种蒙古语文献所含中古蒙古语共有词汇做词频统计，在此基础上分析、探讨中古蒙古语词汇共有词中的外来词和蒙古语固有词词汇构成，将有助于学界更准确、清晰地了解和掌握中古蒙古语语言特征。更多还原

【Abstract】 Medieval Mongolian usually refers to the historical stage of the Mongolian language represented by the written Mongolian language in the 13^th and 14^th centuries. The Mongolian literature in this period involves wide geographical areas from the west Mongolian Plateau to west Asia and was recorded in various languages including Uyghur Mongolian, phags-pa, Arabic, Persian, Chinese and etc.. Based on the common word frequency statistics, the lexical analysis and discussion of the loan words and native words of Medieval Mongolian in the above literature aims to help the academic community to learn the language features of Medieval Mongolian more accurately and clearly.更多还原