Identifying alternations in historical corpus data: the genitive alternation in Old English

This article revisits the diachrony of the genitive alternation, the alternation between ’s and prepositional phrases headed by of in Present-Day English. It is usually assumed to have developed around 1400 CE. For Old English (c. 650–1000 CE), a different alternation between pre-modifying and post-modifying genitive-case-marked noun phrases is suggested to be the genitive alternation. Building on descriptions of competition between genitive-case-marked noun phrases (gen) and prepositional phrases with of (of) in Old English, and unpicking some of the preconceptions about the alternation in Old English, we propose a bottom-up method for systematically identifying possible alternation between of and gen in the York–Toronto–Helsinki Parsed Corpus of Old English Prose (Taylor et al. 2003). Our findings indicate that there is plausibly an alternation in Old English that stands in continuity with Present-Day English and suggest a more complex diachrony for the alternation characterized by continuity and discontinuity in the alternants and the envelope of variation.