Annus Utilis
The Cyclopedic Law Dictionary · Walter A. Shumaker and George Foster Longsdorf; ed. James C. Cahill · 1922
The Cyclopedic Law Dictionary
A year made up of available or serviceable days. Brissonius; Calv. Lex. ANNUUS REDITUS (or REDDITUS). A yearly rent; annuity.
2 Sharswood, Bl. Comm. 41; Reg. Orig. 158b.