- Confidence
- Established
- Formation
- Derivation
- First attested
- Theodosian Code
- Ultimate origin
- Latin (cassus)
Pronunciation
Forms
cassō (present infinitive cassāre, perfect active cassāvī, supine cassātum); first conjugation[1]
Etymology
It is from Latin cassus (“empty, void”) + -ō.[1][2][3] Etymonline instead traces Late Latin ⟨cassāre⟩ to quassō “to shake, quash”.[4]
Earliest recorded meaning
Gaffiot cites the Theodosian Code, of annulling, and Köbler lists Gregory of Tours.[3][5] Köbler dates Gregory 538/539–594 AD.[5]
Semantic evolution
Late Latin, it meant to bring to nothing, destroy, as in Sidonius, and in legal language to annul, make void, as in the Theodosian Code.[2][3]
In Ecclesiastical Latin it means to annul, make void, destroy.[6] English cassate (1510s, “to annul”) is from its participle cassātus.[4]
Timeline
Meanings
Verb
Related words
Usage notes
The OLD's cassō is a Plautine word “to totter, begin to fall”, which it derives from cadō, and Lewis & Short and Wiktionary take it as a form of quassō.[7][2][1] Gregory of Tours also has an adverb cassō “in vain”.[3]
References
- ^ a b c d e Wiktionary, the free dictionary, https://en.wiktionary.org
- ^ a b c d Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
- ^ a b c d e Gaffiot, Félix (2016), Dictionnaire latin-français, new ed. by Gérard Gréco et al. (Gaffiot 2016), online ed.
- ^ a b c Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
- ^ a b c Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
- ^ a b Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
- ^ Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
Cite this entry
“Casso.” Etymologically, 17 Oct. 2026, etymologically.com/la/casso. Accessed 17 Oct. 2026.
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