De Quo
A New Law Dictionary and Glossary · Alexander M. Burrill · 1850
A New Law Dictionary and Glossary
& DE QUIBUS. Lat. Of which. Formal words in the simple writ of entry, from which it was called a writ of entry "in the quo," or "in the quibus."
3 Reeves' Hist. 33.
Praecipe A. quod — reddat B. tantum terrae — de quo idem A. disseisivit praedictum B., &c.; command A. that — he render to B. so much land — of which the said A. disseised the aforesaid B., &c.
Reg. Orig. 229.