The particle bude in the late Middle Russian written tradition

The paper discusses distribution of the particle bude, which has not yet been studied based on data from the Late Middle Russian literary texts. The author argues that the particle bude was an enclitic of approximately the fifth rank and could be used as both a relativizer and a marker of potentiality, as a marker of hypothesis, and as a marker of quasi-assertion. Usages of the future anterior with the auxiliary verb following the relative pronoun as well as contexts in which future anterior expressed the speaker's assumption about some event in the past could serve as loci of grammaticalization for the form bude. The particle bude largely inherited the functional potential of the East Slavic future anterior.