- Confidence
- Probable
- Formation
- Derivation
- First attested
- Plautus
- Ultimate origin
- Proto-Indo-European (*dʰrewgʰ-)
Pronunciation
Forms
frūstrā (not comparable)[1] Plautus scans frustră in the phrase nē frustrā sīs.[2]
Etymology
It is related to fraus “deceit, harm”.[2][3] De Vaan takes it as the plural of ⟨*frūstrum⟩, from ⟨*fraud-tro-⟩; he reconstructs ⟨fraus⟩ as Proto-Italic ⟨*frawV-⟩, perhaps from Proto-Indo-European *dʰrewgʰ- (“to deceive”), with Sanskrit ध्रुति (dhrúti-, “deception”) as a cognate.[4] Lewis & Short took it for an old case form of an adjective ⟨*frūsterus⟩, and Pedersen connected it with frustum “piece”.[5][3]
Earliest recorded meaning
The OLD's earliest citation is Plautus, “in vain”.[2] Köbler dates Plautus c. 250–184 BC.[6]
Semantic evolution
It meant to no purpose, in vain, without effect, as in Plautus, and in Terence without reason, needlessly, mistakenly, often in litotes.[2]
In Ecclesiastical Latin it means in vain, uselessly.[7] Medieval Latin used it for without reason, inconsiderately, and for with impunity.[8]
Timeline
Meanings
Adverb
- In vain, to no purpose.[2][7]
- Without reason, needlessly, mistakenly.[2]
- (Medieval Latin) With impunity.[8]
Word family
- frūstrō
- frūstror
Related words
- fraudō
- fraus
- frūstrātiō
- English frustrate
References
- ^ a b c Wiktionary, the free dictionary, https://en.wiktionary.org
- ^ a b c d e f g h Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
- ^ a b Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
- ^ de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
- ^ Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
- ^ 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
- ^ a b Niermeyer, J. F. (1976), Mediae Latinitatis Lexicon Minus, Leiden: Brill
Cite this entry
“Frustra.” Etymologically, 17 Oct. 2026, etymologically.com/la/frustra. Accessed 17 Oct. 2026.
Last edited on . ·