Literally one who sits by the side of another. The
consuls, praetors, governors of provinces, and the iudices were often imperfectly acquainted
with the law and the forms of procedure, and it was necessary that they should have the aid of
those who had made the law their study. These adviserswere known as assessores.
The praefectus praetorio
, and other civil and military functionaries, had their assessors. The
empercr Alexander Severus gave the assessors a regular salary. See BethmannHollweg, Der
, iii. 129.141.