-assessor-

n. [ L., one who sits beside, the assistant of a judge, fr. assid&unr_;re. See Assession. LL., one who arranges of determines the taxes, fr. assid&unr_;re. See Assess, v., and cf. Cessor. ] 1. One appointed or elected to assist a judge or magistrate with his special knowledge of the subject to be decided; as legal assessors, nautical assessors. Mozley & W. [ 1913 Webster ]

2. One who sits by another, as next in dignity, or as an assistant and adviser; an associate in office. [ 1913 Webster ]

Whence to his Son,
The assessor of his throne, he thus began. Milton. [ 1913 Webster ]

With his ignorance, his inclinations, and his fancy, as his assessors in judgment. I. Taylor. [ 1913 Webster ]

3. One appointed to assess persons or property for the purpose of taxation. Bouvier. [ 1913 Webster ]