Res nova
Defined in 2 dictionaries — Ballentine's (1916), Black's (1910)
Ballentine's Law Dictionary
James A. Ballentine · 1916
A new matter; a matter without a precedent.
Black's Law Dictionary
Henry Campbell Black, M.A. · 1910
A new matter; a new case; a question not before decided.
Defined under Res mobiles in Black's Law Dictionary.