The mandatōr (Greek: μανδάτωρ), deriving from the Latin word for “messenger”, was a subaltern official in the middle Byzantine Empire.
A director; one who gives a mandate or order.
The person who employs another to perform a mandate.
Obligatory; required or commanded by authority.
“Attendance at a school is usually mandatory for children.”
Of, being or relating to a mandate.
A person, organisation or state who receives a mandate; a mandatary.
required by law or mandate; compulsory
“wearing helmets was made mandatory for pedal cyclists”
of or conveying a command
“he did not want the guidelines to be mandatory”
variant spelling of mandatary