commissionary adjective 1noun 1forms 1 adjective1 •Of, relating to, conferring, or conferred by a commission.Delegate or commissionary authority. — 1649 noun1 •a commission, an administrative boardAfter the death of king Philip; Charles Counte de Valois, his brother, begun criminally to pursue M. Enguerrant before certaine commissionaries of the said court, delegated for that purpose. — 1602 formscommissionaries
