efficacity

C2+ Topic:Cause, Change & Process

US /ˌɛfɪˈkæsəti/ UK /ˌɛfɪˈkæsəti/ See IPA manual

Meanings

1

noun
the power or capacity to produce a desired effect; efficacy

They questioned the efficacity of the remedy against the new strain.

Thesaurus

Synonyms

1 noun · the power or capacity to... efficacy effectiveness potency efficiencyeffectualness

Opposites

inefficacyineffectiveness

Word family

Related forms efficacious efficacy effect

Etymology

From French efficacité or directly from Latin efficācitās ('efficacy'), from efficāx ('effective'), from efficere ('to accomplish').

efficācitās Latin efficāx Latin efficere Latin

View etymology graph ->

Topics

Cause, Change & Process Word Formation & Derivatives

External links

# efficacity

**Type:** Word
**Level:** C2+
**Part of speech:** noun
**IPA (US):** /ˌɛfɪˈkæsəti/
**IPA (UK):** /ˌɛfɪˈkæsəti/

## Meanings
1. the power or capacity to produce a desired effect; efficacy

## Examples
- They questioned the efficacity of the remedy against the new strain.

## Synonyms
- efficacy
- effectiveness
- potency
- efficiency
- effectualness

## Antonyms
- inefficacy
- ineffectiveness

## Related Forms
- efficacious
- efficacy
- effect

## Roots and Affixes
- Root: efficācitās
- Root: efficāx
- Root: efficere

## Etymology
From French efficacité or directly from Latin efficācitās ('efficacy'), from efficāx ('effective'), from efficere ('to accomplish').

## AI Etymology
Efficacity is from French efficacité or directly from Latin efficācitās ('efficacy'), from efficāx ('effective'), from efficere ('to accomplish'). Important recorded forms include efficācitās (Latin), efficāx (Latin), and efficere (Latin). The current sense covers the power or capacity to produce a desired effect; efficacy. The wider family includes related words such as efficacious, efficacy, and effect.

## Topics
- Cause, Change & Process
- Word Formation & Derivatives

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