Mid 17th century; earliest use found in Ephraim Pagitt (1574–1646), heresiologist. From classical Latin dictātōrius of or belonging to a dictator from dictātor + -ius, suffix forming adjectives. Compare Middle French dictatoire, Spanish dictatorio, Italian dittatorio.
Definition of dictatory in US English:
dictatory
adjective
Dictatorial.
Origin
Mid 17th century; earliest use found in Ephraim Pagitt (1574–1646), heresiologist. From classical Latin dictātōrius of or belonging to a dictator from dictātor + -ius, suffix forming adjectives. Compare Middle French dictatoire, Spanish dictatorio, Italian dittatorio.