Etymologically

obligation

Etymology and origin of the English word obligation

Confidence
Established
Formation
Borrowing
First attested
1297
Borrowed from
Old French obligacion via Middle English
Ultimate origin
Latin (obligatio)

Pronunciation

  • IPA: /ˌɒb.lɪˈɡeɪ.ʃn̩/ (UK); /ˌɑ.blɪˈɡeɪ.ʃn̩/, /ˌɑ.bləˈɡeɪ.ʃn̩/ (US)[1]

Etymology

It is inherited from Middle English obligacioun, borrowed from Old French obligacion (“obligation, duty, responsibility”) and directly from Latin obligātiō, obligātiōnem, an engaging or pledging, literally a binding,[2][3] from obligātus, past participle of obligāre, to bind, bind up, figuratively to put under obligation (see oblige).[2][3][4]

Earliest recorded meaning

The act of binding oneself by oath, promise or contract: 1297 in the OED; a binding pledge, about 1300 in Etymonline.[5][2]

Semantic evolution

In law, an agreement enforceable by law, especially a written bond, is from 1382.[5] Moral or legal constraint, the condition of being bound, is from 1602,[5] and an action one is bound to perform, a duty, from 1605.[5] The fact of being indebted to someone for a benefit, and the benefit itself, a kindness, are from the 17th century (1632 and 1618).[5]

Timeline

  • 1297 – a binding pledge.[5]
  • 1382 – a legal agreement.[5]
  • 1602 – moral or legal constraint.[5]
  • 1605 – a duty.[5]
  • 1632 – indebtedness for a favour.[5]

Modern meaning

Noun

  1. A moral or legal requirement; a duty.
  2. The act of binding oneself by a promise or contract, or the state of being so bound.
  3. (law) A legally enforceable agreement, especially to pay money, or the document recording it.
  4. A debt of gratitude for a favour, or the favour itself.

Word family

  • obligational
  • holy day of obligation
  • obligate
  • obligato
  • oblige
  • obligee
  • obliging
  • obligor
  • obligatory
  • ligament
  • ligature

References

  1. ^ Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  3. ^ a b Klein, Ernest. A Comprehensive Etymological Dictionary of the English Language. 2 vols. Amsterdam: Elsevier, 1966–1967.
  4. ^ Pearsall, Judy, ed. (1998), The New Oxford Dictionary of English, Oxford: Clarendon Press
  5. ^ a b c d e f g h i j Simpson, J. A.; Weiner, E. S. C., eds. (1989), The Oxford English Dictionary, 2nd ed., Oxford: Clarendon Press

Related etymologies

Cite this entry

“Obligation.” Etymologically, 17 Oct. 2026, etymologically.com/en/obligation. Accessed 17 Oct. 2026.

Last edited on . ·