Castellorum Operatio
Defined in 3 dictionaries — Black's (1910), Black's (1891), Burrill (1850)
Black's Law Dictionary
Henry Campbell Black, M.A. · 1910
A Dictionary of Law
Henry Campbell Black · 1891
In Saxon and old English law. Castle work. Service and labor done by inferior tenants for the building and upholding castles and public places of defense. One of the three necessary charges, (trinoda necessitas,) to which all lands among the Saxons were expressly subject. Cowell.
A New Law Dictionary and Glossary
Alexander M. Burrill · 1850
Lat.
In Saxon and old English law. Castle work. Service and labor done by inferior tenants for the building and upholding castles, and public places of defence. One of the three necessary charges, (trinoda necessitas) to which all lands among the Saxons were expressly subject. Cowell, JSTennett's Par, Ant, 114. See Trinoda necessitas,