This research has been funded through the grant FFI2017-83360-P, which is gratefully acknowledged. Additional funding has been provided by the Spanish Ministry of Universities and Research (PhD scholarship held by Laura García Fernández and Sara Domínguez Barragán); the Spanish Ministry of Education (sabbatical semester at the York Corpus of Old English (Javier Martín Arista) through the mobility grant PRX16/00184; and sabbatical semester at the University of Oxford (Javier Martín Arista) through the mobility grant PRX19-00389; as well as the University of La Rioja (postdoctoral grant awarded to Laura García Fernández at Charles University of Prague).