different between vim vs efficacy

English

Etymology

Possibly from Latin vim, accusative singular of v?s (“force, power, strength; (New Latin) energy, force”) (ultimately from Proto-Indo-European *weyh?- (“to chase, pursue”); compare English vis); but perhaps a modern expressive formation.

Pronunciation

• (Received Pronunciation, General American) IPA^(key): /v?m/
• Rhymes: -?m

Noun

vim (uncountable)

1. Ready vitality and vigour. [from mid 19th c.]

   Synonyms: energy, go, pep, pizzazz, verve, zest

Derived terms

• vim and vigor
• vimless

Related terms

• vis
• violence
• violate

Translations

See also

• Thesaurus:enthusiasm

References

Further reading

• vim (disambiguation) on Wikipedia.Wikipedia
• Douglas Harper (2001–2021) , “vim”, in Online Etymology Dictionary

Anagrams

• IVM, VMI

Latin

Noun

vim

1. accusative singular of v?s

Norwegian Nynorsk

Verb

vim

1. imperative of vima

Portuguese

Pronunciation

• (Portugal, Brazil) IPA^(key): /?v?/

Verb

vim

1. First-person singular (eu) preterite indicative of vir
2. (Brazil, proscribed) Alternative form of vir when used with auxiliary verbs

English

Etymology

From Old French efficace, from Late Latin effic?cia (“efficacy”), from effic?x (“efficacious”); see efficacious.

Pronunciation

• IPA^(key): /??f.?.k?.si/

Noun

efficacy (usually uncountable, plural efficacies)

1. Ability to produce a desired effect under ideal testing conditions.
   • 2005, Flay et al. Standards of Evidence: Criteria for Efficacy, Effectiveness and Dissemination DOI: 10.1007/s11121-005-5553-y

     Efficacy refers to the beneficial effects of a program or policy under optimal conditions of delivery, whereas effectiveness refers to effects of a program or policy under more real-world conditions.

2. Degree of ability to produce a desired effect.
   • 1996, Moskovich, Patent application PCT/US1996/003658

     Toothbrush with improved efficacy

Synonyms

• efficacity

Related terms

Translations

Further reading

• efficacy in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.
• efficacy in The Century Dictionary, New York, N.Y.: The Century Co., 1911.