Quadrans
Defined in 2 dictionaries — Ballentine's (1916), Black's (1910)
Ballentine's Law Dictionary
James A. Ballentine · 1916
A quarter part.
Black's Law Dictionary
Henry Campbell Black, M.A. · 1910
Lat.
In Roman law. The fourth part; the quarter of any number, measure, or quantity. Hence an heir to the fourth part of the inheritance was called "hæres ex quadrante." Also a Roman coin, being the fourth part of an as, equal in value to an English' half-penny.
In old English law. A farthing; a fourth part or quarter of a penny.