nessum
Found Nessum with different capitalization.
Nessum Proper-name noun masculine genitive plural, Proper-name noun masculine accusative singular of Nessus
omne jus quod dixerat se habuisse erga monachos de Melros in domibus et terra quas habent super ~um in villa de Berwic ‥
que jacet super ~um inter terram Willelmi de Cuthe et terram Willelmi Spure