Clavxa
Defined in 3 dictionaries — Black's (1910), Kinney (1893), Black's (1891)
Black's Law Dictionary
Henry Campbell Black, M.A. · 1910
In old English law. A club or mace; tenure per serjeantiam claviœ, by the serjeanty of the club or mace. Cowell.
A Law Dictionary and Glossary
George C. Kinney · 1893
I. I In old English law. A club or mace.
A Dictionary of Law
Henry Campbell Black · 1891
Inold English law. <A club or mace; tenure per serjeantiam clavie, by the serjeanty of the club ormace. Cowell.