Primogradu
A New Law Dictionary and Glossary · Alexander M. Burrill · 1850
A New Law Dictionary and Glossary
Lat. Clerks of the first form or rank. The chief clerks of chancery, who acted as the chancellor's assistants, (collaterals et socii cancellarii,) in the framing of writs in consimili casu; and were afterwards termed masters in chancery.
Crah Vs Hist, Eng. Law, h\*l, 184. 2 Reeves' Hist. Eng. Law, 250, 251.