The spatharii or spatharioi (singular: Latin: spatharius; Greek: σπαθάριος, literally "spatha-bearer") were a class of Late Roman imperial bodyguards in the court in Constantinople in the 5th–6th centuries, later becoming a purely honorary dignity in the Byzantine Empire.
The award of the dignity also meant the entry of its holder in the Byzantine Senate.
Ælfric of Eynsham glosses spatharius as "sword-bearer": "swyrd-bora. Id est, Ensifer."
Greek σπάθη (spáthē),
Spata https://en.wikipedia.org/wiki/Spatha
----
Archon (Greek: ἄρχων, romanized: árchōn, plural: ἄρχοντες, árchontes) is a Greek word that
means "ruler", frequently used as the title of a specific public office.
It is the masculine present participle of the verb stem αρχ-, meaning "to be first, to rule", derived from the same root as words such as monarch and hierarchy.
https://en.wikipedia.org/wiki/Archon
Archon
generic term denoting a magnate or powerful official, a foreign ruler, and technical term for governor of a city/region or head of a department.
https://pbw2016.kdl.kcl.ac.uk/ref/glossary/