Leges non scriptae
Defined in 2 dictionaries — Ballentine's (1916), Black's (1891)
Ballentine's Law Dictionary
James A. Ballentine · 1916
Unwritten laws.
A Dictionary of Law
Henry Campbell Black · 1891
Lat.
In English law. Unwritten or customary laws, including those ancient acts of parliament which were made before time of memory. Hale, Com. Law, 5. See 1 Bl. Comm. 63, 64. Leges non verbis, sed rebus, sunt im- Leges posteriores priores contrarias abrogant. Luter laws abrogate pricr laws that are contrary tothem. Broom, Max. 27, 29,