Four-gender systems in Indo-European

A long-established tenet of Indo-European linguistics says that grammatical gender systems all along the history of this language phylum were maximally tripartite and generally tended toward a reduction of gender contrasts. In this article, we shall show that this widely-held idea overlooks the existence of four-gender systems in a substantial part of the Romance language family, a fact that has in turn gone unnoticed so far. We shall provide an analysis of the relevant Romance data, a sketchy comparison with other four-gender systems described in linguistic typological research, and a detailed reconstruction of how the gender systems in question might have developed in the Latin-Romance transition.