Etymologically

strengthen

Etymology and origin of the English word strengthen

Confidence
Established
Formation
Derivation
First attested
before 1300
From
Middle English strengthnen
Ultimate origin
English (strength)

Pronunciation

  • IPA: /ˈstɹɛŋ(k)θən/, /ˈstɹɛnθən/[1]

Etymology

It is inherited from Middle English strengthnen, from strength with the verb suffix -en.[2][3][4] The earlier verb was simply strength (about 1200), and also strengen, from Old English gestrengan.[2]

Earliest recorded meaning

To give moral support, courage or confidence: before 1300 in the OED;[5] to make or grow stronger, the mid-15th century in Etymonline.[2]

Semantic evolution

To give a town defensive strength is from 1452,[5] and to strengthen the hands of, to enable to act more effectively, from 1535.[5] To make stronger in influence or authority is from 1579,[5] to make a person physically stronger from 1585,[5] and to reinforce a material thing from 1611.[5] To confirm someone in an opinion is from 1833.[5]

Timeline

  • c. 1200 – strength (verb).[2]
  • before 1300 – to encourage.[5]
  • 1452 – to fortify.[5]
  • 1579 – to make more secure.[5]
  • 1585 – to make physically stronger.[5]

Modern meaning

Verb

  1. To make stronger or increase the strength of.
  2. To become stronger.

Word family

  • strengthener
  • strengtheningly
  • prestrengthen
  • restrengthen
  • unstrengthened
  • unstrengthening

References

  1. ^ Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  3. ^ Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
  4. ^ Shorter Oxford English Dictionary on Historical Principles (2002), 5th ed., ed. William R. Trumble and Angus Stevenson, Oxford: Oxford University Press
  5. ^ a b c d e f g h i j k Simpson, J. A.; Weiner, E. S. C., eds. (1989), The Oxford English Dictionary, 2nd ed., Oxford: Clarendon Press
Cite this entry

“Strengthen.” Etymologically, 17 Oct. 2026, etymologically.com/en/strengthen. Accessed 17 Oct. 2026.

Last edited on . ·