摘要: 江西吉水方言的“做”有普通话“和”的介词和连词功能,可引出协同对象、言谈对象、比较对象和并列对象。连-介词“做”的功能一般可以用“做伴(/嘙/得)”替换。文章以“做”为代表观察“做”及双音节形式的功能后指出,“做”是“做伴”语音弱化的结果,伴随介词“做伴[ʦɿ31–51 phon512–20]”源于相伴义动词“做伴[ʦɿ31–33 phon512]”,即在突显协同对象的连谓结构中,动词前的“做伴”发展出伴随介词功能,并发展出其他功能。考察发现,连-介词“做”及双音节形式也见于吉水周边的赣方言、吴方言和徽语,汉语方言中广泛存在相伴义动词发展出连-介词功能这种现象。① ABSTRACT: Similar with he or ken in Mandarin, ʦɿ 31-512 (做) of Jishui dialect in Jiangxi functions as comitative, animate directional and comparative preposition as well as coordinator, which can be substituted by the disyllabic functional words ʦɿ31–51 phon512–20 (做伴), ʦɿ31–51 pho20 (做嘙) or ʦɿ31–51 te20 (做得). This paper explores the functions of ʦɿ 31-512 as well as its disyllable and explores their semantic sources and pathway of semantic changes. It claims that the comitative ʦɿ 31-51 p h on 512-20 originates from verb ʦɿ 31-33 p h on 512meaning accompany , and it is reanalyzed with tonal change in the situation where ʦɿ 31-33 p h on 512 acts as the first verb with a prominent animate object of a serial verb construction. Then, on the one hand, the comitative ʦɿ 31-51 p h on 512-20 undergoes erosion into ʦɿ 31-51 p h o 512-20 or even into ʦɿ 3-512, and the latter one constitutes a compound disyllabic with suffix te 0. On the other hand, the disyllabic and monosyllabic comitatives are extended into other situations with other kinds of verb where they are reanalyzed into animate directional and comparative prepositions. Simultaneously, the comitatives are grammaticalized into coordinators, when the two participants make similar contributions to an event and hold equal status. Then it reveals that cognates of the preposition and coordinator ʦuo (做) or its compounds spread widely around Jishui dialect in Jiangxi as well as some Wu and Hui dialects, and it is common for verbs meaning accompany to develop into comitatives and coordinators.