Etymologically

Etymology and origin of the Latin word piratia

Confidence
Established
Formation
Derivation
First attested
1419 Foedera More words from the 15th century
Ultimate origin
Latin pīrāta
Etymology tree
inherited borrowed derived
Ancient Greek πεῖρα (peîra)
Ancient Greek πειράω (peiráō)
Ancient Greek πειρατής (peirātḗs)
Latin pīrāta
Latin pīrātia
English piracy
From the same root
Ancient Greek ἔμπειρος (émpeiros) ← πεῖρα

Forms

pīrātia f (genitive pīrātiae); first declension[1]

Etymology

It is formed from Latin pīrāta (“pirate”) + -ia,[1][2][3] and the DMLBS compares Ancient Greek πειρατεῖαι (peirateîai).[2]

Earliest recorded meaning

It is a Medieval Latin word: the earliest record in the DMLBS and Köbler is from 1419, in a document printed in the Foedera, where something is done per modum piratiae, by way of piracy.[2][3]

Semantic evolution

Wiktionary marks it as rare.[1] In the British record it is used of piratical acts in treaties and royal documents of the 15th to 17th centuries, often beside words for robbery and plunder.[2] Du Cange lists it with piratio and refers the reader to pirata.[4]

Timeline

  • 1419 – A document in the Foedera speaks of action per modum piratiae.[2][3]
  • 1492 – A treaty in the Foedera excludes men at arms who commit piratiae or other misdeeds.[2]
  • 1577 – A document in the Gild Merchant mentions merchants' losses through misfortunes at sea and piracy.[2]
  • 1606 – A royal pardon names piratiam with plunder and spoil.[2]

Meanings

Noun

  1. (Medieval Latin) piracy; a piratical act.[2][1][3]

References

  1. ^ a b c d Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i Latham, R. E., D. R. Howlett, R. K. Ashdowne, et al. (1975–2013), Dictionary of Medieval Latin from British Sources, London: British Academy / Oxford University Press
  3. ^ a b c d Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  4. ^ du Cange, Charles du Fresne, et al. (1883–1887), Glossarium mediae et infimae latinitatis, augmented ed. by Léopold Favre, Niort: L. Favre

Borrowed into

Cite this entry

“Piratia.” Etymologically, 7 Nov. 2026, etymologically.com/la/piratia. Accessed 8 Nov. 2026.

Last edited on . ·