"Efficacy" is a word in ENGLISH

efficacy ENGLISH
Definition:

Power to produce effects; operation or energy of an agent
or force; production of the effect intended; as, the efficacy of
medicine in counteracting disease; the efficacy of prayer.

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available ENGLISH

Having sufficient power, force, or efficacy, for the object; effectual; valid; as, an available plea.

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availableness ENGLISH

Competent power; validity; efficacy; as, the availableness of a title.

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drastic ENGLISH

Acting rapidly and violently; efficacious; powerful; -- opposed to bland; as, drastic purgatives.

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efficacious ENGLISH

Possessing the quality of being effective; productive of, or powerful to produce, the effect intended; as, an efficacious law.

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energetical ENGLISH

Exhibiting energy; operating with force, vigor, and effect; forcible; powerful; efficacious; as, energetic measures; energetic laws.

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forcible ENGLISH

Possessing force; characterized by force, efficiency, or energy; powerful; efficacious; impressive; influential.

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inefficacious ENGLISH

Not efficacious; not having power to produce the effect desired; inadequate; incompetent; inefficient; impotent.

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inflential ENGLISH

Exerting or possessing influence or power; potent; efficacious; effective; strong; having authority or ascendency; as, an influential man, station, argument, …

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infringe ENGLISH

To hinder; to destroy; as, to infringe efficacy; to infringe delight or power.

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magistery ENGLISH

Mastery; powerful medical influence; renowned efficacy; a sovereign remedy.

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potency ENGLISH

The quality or state of being potent; physical or moral power; inherent strength; energy; ability to effect a purpose; capability; …

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potent ENGLISH

Producing great physical effects; forcible; powerful' efficacious; as, a potent medicine.

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potently ENGLISH

With great force or energy; powerfully; efficaciously.

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potentness ENGLISH

The quality or state of being potent; powerfulness; potency; efficacy.

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powerful ENGLISH

Full of power; capable of producing great effects of any kind; potent; mighty; efficacious; intense; as, a powerful man or …

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virtual ENGLISH

Having the power of acting or of invisible efficacy without the agency of the material or sensible part; potential; energizing.

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virtue ENGLISH

Active quality or power; capacity or power adequate to the production of a given effect; energy; strength; potency; efficacy; as, …

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virtuous ENGLISH

Having power or efficacy; powerfully operative; efficacious; potent.

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weight ENGLISH

Importance; power; influence; efficacy; consequence; moment; impressiveness; as, a consideration of vast weight.

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