Etymologically

petroleum

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Pronunciation

  • Classical: [pɛˈtrɔ.ɫe.ũː][1]
  • Ecclesiastical: [peˈtrɔː.le.um][1]

Forms

petroleum n (genitive petroleī); second declension[1]

Etymology

It is formed from Latin petra (“rock”) + oleum (“oil”), “rock oil”, in Medieval Latin.[2][3] Wiktionary calls it a blend of petra and oleum.[1] Petra is borrowed from Ancient Greek πέτρα (pétrā, “rock”), and oleum goes back to ἔλαιον (élaion, “olive oil”).[1][4]

Earliest recorded meaning

The earliest record in the DMLBS is from 1198, an account entry that prices an ounce of it at twelve shillings: pro j uncia de petroleo xij sol.[2]

Semantic evolution

Medieval writers used it for the mineral oil that seeps out of rocks;[2] one manuscript glosses it as “oil of stone” in English.[2] Spellings such as petroleon, petrolium and petreleum occur.[2][4] It is also recorded in a 15th-century Polish source.[5]

The word passed into Anglo-French in the mid-14th century and into English in the early 15th,[3] and Portuguese also borrowed it.[1] It remained the New Latin term.[1]

Timeline

  • 1198 – An account entry prices an ounce of petroleum at twelve shillings.[2]
  • mid-14th century – The word appears in Anglo-French.[3]
  • early 15th century – English borrows it as petroleum.[3]
  • 15th century – A Polish source records it.[5]

Meanings

Noun

  1. (Medieval Latin, New Latin) Petroleum, the mineral oil that issues from rocks.[2][1]

References

  1. ^ a b c d e f g h Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g 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 Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  4. ^ a b Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  5. ^ a b Lexicon mediae et infimae Latinitatis Polonorum (1953–), Kraków: Instytut Języka Polskiego PAN; electronic ed. elexicon.scriptores.pl