Etymologically

occasionalis

Etymology and origin of the Latin word occasionalis

Confidence
Established
Formation
Derivation
First attested
919
Ultimate origin
Latin occāsiō
Etymology tree
inherited borrowed derived
Latin occasio
French occasion
Italian occasione
Latin occasionalis

Forms

occāsiōnālis (neuter occāsiōnāle); third-declension two-termination adjective[1][2]

Etymology

It is from Latin occāsiō (“opportunity”) + -ālis.[1][2]

Earliest recorded meaning

Köbler records it in a charter of 919,[1] meaning “occasional”.[3]

Semantic evolution

Medieval Latin used it of what happens by occasion.[3] In British sources it could mean opportune or timely, and incidental, arising as an indirect effect, also as a philosophical term.[4] A Polish record of 1437 uses it in theology of venial sins, as opposed to mortal ones.[2]

Timeline

  • 919 – Recorded in a charter.[1]
  • 1437 – A Polish formula of absolution names occasionalia beside mortal sins.[2]

Meanings

Adjective

  1. (Medieval Latin) occasional.[3][1]
  2. (Medieval Latin) opportune, timely.[4]
  3. (Medieval Latin) incidental, happening as an indirect effect.[4]
  4. (Medieval Latin, theology) Of a sin: venial.[2]

References

  1. ^ a b c d e Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  2. ^ a b c d e Lexicon mediae et infimae Latinitatis Polonorum (1953–), Kraków: Instytut Języka Polskiego PAN; electronic ed. elexicon.scriptores.pl
  3. ^ a b c Niermeyer, J. F. (1976), Mediae Latinitatis Lexicon Minus, Leiden: Brill
  4. ^ a b c 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
Cite this entry

“Occasionalis.” Etymologically, 24 Oct. 2026, etymologically.com/la/occasionalis. Accessed 24 Oct. 2026.

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