On the syntax of object pronouns in Old English and Early Middle English

The paper investigates the conditions that determine the distribution of object pronouns in the period before the latter become fixed to the post-verbal position. In the transition between Old English and Early Middle English (henceforth OE and EME), object pronouns surface to the left of T, to the left of V and to the right of V. It will be shown that the distribution in the pre-T and post-V positions in OE is due to information structural and prosodic interface conditions, whereas the position at the left of V is analysed as unmarked.In EME, the pre-T position continues to be linked to topicalization, whereas the pre-V position shows a progressively less frequent distribution. The post-verbal mapping of object pronouns can still be linked to prosodic1 and information structural (IS) mapping conditions, but the data show that the post- verbal position was on the way to being reanalysed as the unmarked position.The change will be attributed to two factors: a) the new option of de-accentuation in situ, leading pronouns to choose the non-finite verb as their phonological host, and b) the grammaticalization of the definite determiner that renders light (non-branching and left-branching) objects into right-branching, heavy objects at the end of the OE period. We will provide evidence that it is the latter factor that leads to the new option of de-accenting pronouns in situ (cf. Hinterholzl 2017).