Public-domain · open source
OpenJurist

Malus usus abolendus est

Defined in 1 dictionary — Black's (1910)

Black's Law Dictionary

Henry Campbell Black, M.A. · 1910

A bad or invalid custom is [ought] to be abolished. Litt § 212; Co. Litt 141; 1 Bl. Comm. 76; Broom, Max.' 921.