Procuration

Agency; proxy; the act of constituting another one's attorney in fact; action under a power of attorney or other constitution of agency. Indorsing a bill or note "by procuration" (or per proc.) is doing it as proxy for another or by his authority.

Procuration fee

(or money.) In English law. Brokerage or commission allowed to scriveners and solicitors for obtaining loans of money.

4 Bl. Comm. 157.