Black's Law Dictionary (2nd edition)dictionaries

Non-User

Neglect to use. Neglect to use a franchise; neglect to exercise an office. 2 Bl. Comm. 153. Neglect or omis-slon to use an easement or otber right 3 Kent, Comm. 448. A right acquired by use may be lost by non-user

Source: Black’s Law Dictionary 2nd Ed (1910)