Etymologically

enforce

Etymology and origin of the English word enforce

Confidence
Established
Formation
Borrowing
First attested
c. 1343
Borrowed from
Old French enforcier
Ultimate origin
Old French (enforcier)

Pronunciation

  • IPA: UK /ɪnˈfɔːs/, US /enˈfɔːrs/[1]

Etymology

It is borrowed from Old French enforcier (“to exert force”) and enforcir, to strengthen,[2][3][4] from Late Latin *infortiāre, *infortīre,[2][4] from in-, in, and fortis, strong (see force).[2][3][5]

Earliest recorded meaning

To make an effort: probably about 1343;[2] to strengthen a fortress, 1340–70 in the OED;[6] to drive by physical force, the mid-14th century in Etymonline.[3]

Semantic evolution

To force or compel is from 1350.[2] In the late 14th century it also meant to reinforce, strengthen an argument, and grow stronger,[3] and to press home or emphasize from the 15th century.[4] The meaning to compel obedience to a law is attested from the 1640s.[3] Enforcement is from 1475, in Caxton,[2] and enforceable from 1589.[2] The NODE notes it was formerly also written inforce.[5]

Timeline

  • c. 1343 – to make an effort.[2]
  • 1350 – to compel.[2]
  • 1475 – enforcement.[2]
  • 1589 – enforceable.[2]
  • 1640s – to enforce a law.[3]

Modern meaning

Verb

  1. To make sure that a law or rule is obeyed.
  2. To impose by force: to enforce silence.
  3. To strengthen or emphasize an argument.

Word family

  • enforceability
  • enforceable
  • enforcement
  • enforcer
  • enforcive
  • nonenforced
  • nonenforcing
  • reenforce

References

  1. ^ Jones, Daniel (2011), Cambridge English Pronouncing Dictionary, 18th ed., ed. Peter Roach, Jane Setter and John Esling, Cambridge: Cambridge University Press
  2. ^ a b c d e f g h i j k Barnhart, Robert K. (1988), The Barnhart Dictionary of Etymology
  3. ^ a b c d e f Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  4. ^ a b c Hoad, T. F., ed. (1986), The Concise Oxford Dictionary of English Etymology, Oxford: Clarendon Press
  5. ^ a b Pearsall, Judy, ed. (1998), The New Oxford Dictionary of English, Oxford: Clarendon Press
  6. ^ Simpson, J. A.; Weiner, E. S. C., eds. (1989), The Oxford English Dictionary, 2nd ed., Oxford: Clarendon Press

Related etymologies

Cite this entry

“Enforce.” Etymologically, 17 Oct. 2026, etymologically.com/en/enforce. Accessed 17 Oct. 2026.

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