Etymology and origin of the Latin word indefinitus
- Confidence
- Established
- Formation
- Derivation
- First attested
- c. 165 Aulus Gellius More words from the 2nd century
- Ultimate origin
- Latin dēfīnītus
Etymology tree
From the same root
Forms
indēfīnītus (feminine indēfīnīta, neuter indēfīnītum); first/second-declension adjective[1]
Etymology
It is from Latin in-2 (“not”) + dēfīnītus (“definite”).[2][3][1]
Earliest recorded meaning
Aulus Gellius (c. 165 AD) is the first certain source: a discussion becomes endless, he says, unless it is limited by simple questions and answers.[2][3][4] The TLL notes that a fragment of Cicero has it only by an editor's conjecture.[3]
Semantic evolution
Gellius also uses it in grammar for the infinitive mood, in Greek ἀπαρέμφατος (aparémphatos).[2] Hilary of Poitiers, Augustine and Gregory the Great use it of what is indeterminate, uncertain or without limit, such as an indefinite number.[3] In medieval Latin it rendered ἀόριστος (aóristos) and was used in grammar and philosophy of what is not limited or determined;[5] it is sometimes confused with infinitus.[5]
English indefinite (1520s) comes from it.[6]
Timeline
- c. 165 AD – Aulus Gellius uses it of an endless discussion and of the infinitive mood.[2][4]
- c. 315–367/368 AD – Hilary of Poitiers uses it of an indefinite number.[3][4]
- 354–430 AD – Augustine uses it.[3][4]
- 1520s – English borrows it as indefinite.[6]
Meanings
Adjective
- Unlimited, endless; indefinite, indeterminate.[2][3][7]
- (grammar) Belonging to the infinitive mood.[2]
Related words
- English indefinite
References
- ^ a b c d 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 Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
- ^ a b c d Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
- ^ a b Mittellateinisches Wörterbuch bis zum ausgehenden 13. Jahrhundert (1967–), Munich: C. H. Beck; Bayerische Akademie der Wissenschaften
- ^ a b Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
- ^ Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
Cite this entry
“Indefinitus.” Etymologically, 7 Nov. 2026, etymologically.com/la/indefinitus. Accessed 8 Nov. 2026.
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