Etymology and origin of the Latin word assessor
- Confidence
- Established
- Formation
- Derivation
- First attested
- 81–43 BC Cicero More words from the 1st century BC
- Ultimate origin
- Latin assideō
Etymology tree
From the same root
Forms
assessor m (genitive assessōris); third declension[1] Also spelled adsessor.[2][3]
Etymology
It is formed from Latin assideō (“to sit beside”) + -tor,[2][1] on the stem of the participle assessus; literally it is “one who sits beside”.[1][4]
Earliest recorded meaning
Cicero (81–43 BC) uses it of the augur whom the Spartans gave their kings as an adviser.[3][5]
Semantic evolution
Its general sense was a person who sits beside someone to advise him, a counsellor.[2][3] In legal language it became the assistant of a judge or magistrate, a sense found in Seneca, Suetonius and the Digest.[3][2] Augustine calls Christ the assessor of the Father, since he sits at the Father's right hand.[6]
In Late and Medieval Latin it was also a person who assessed taxes,[1][7][4] and Niermeyer records it as well for one who assigned an annuity, and for a rider.[7] English assessor was taken from it, partly through Old French, in the late 14th century, first for the assistant of a judge.[4]
Timeline
- 81–43 BC – Cicero uses it of an augur who advised the Spartan kings.[3][5]
- 4 BC–65 AD – Seneca uses it of a judge's assistant.[3][5]
- 354–430 AD – Augustine calls Christ the assessor of the Father.[6][5]
- late 14th century – English borrows it for a judge's assistant.[4]
Meanings
Noun
- One who sits beside another to advise him; a counsellor, aide.[2][3]
- (law) The assistant of a judge or magistrate, an assessor.[2][3]
- (Late Latin) An assessor of taxes.[1][7]
- (Medieval Latin) One who assigns an annuity.[7]
- (Medieval Latin) A rider.[7]
Word family
- assessorius
Related words
- English assessor
References
- ^ a b c d e f g Wiktionary, the free dictionary, https://en.wiktionary.org
- ^ a b c d e f Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
- ^ a b c d e f g h Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
- ^ a b c d Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
- ^ a b c d Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
- ^ a b Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
- ^ a b c d e Niermeyer, J. F. (1976), Mediae Latinitatis Lexicon Minus, Leiden: Brill
Borrowed into
Cite this entry
“Assessor.” Etymologically, 7 Nov. 2026, etymologically.com/la/assessor. Accessed 8 Nov. 2026.
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