The root of the word efficacy is "efficac-" which comes from the Latin word "efficāx" meaning "effective" or "capable of producing a desired effect."
Root word is usual.
The root word is gift.
end is the root word
Tri is the root word of intricate. The root word means three.
The root word of impersonal is person.
Efficacy is a noun that means "the ability to produce a desired or intended result." Therefore, an example of a sentence using the word efficacy is, "Chemotherapy has been shown to have an efficacy to stop cancerous cells from growing."
Efficacy is the ability to create a desired result. A sentence using this word would be, "The medicine worked as expected, proving the efficacy of the treatment."
Efficacy
Fugitive has no root word it is the root word.
There is no root word of river. It itself is a root word.
Your Answer: Efficacy
the root word is'confirminglyishness'
Root word is usual.
the root word is decor and that is the root word of decorate
The root word is gift.
end is the root word
Tri is the root word of intricate. The root word means three.