incisiveness vs effectivity

incisiveness and effectivity both are nouns.

Word	Noun	Adjective	Verb	Adverb
incisiveness	Yes	No	No	No
effectivity	Yes	No	No	No

As nouns, effectivity is a hypernym of incisiveness; that is, effectivity is a word with a broader meaning than incisiveness:

incisiveness: keenness and forcefulness of thought or expression or intellect
effectivity: power to be effective; the quality of being able to bring about an effect

Other hypernyms of incisiveness include effectiveness, effectuality, effectualness.

incisiveness (noun)	effectivity (noun)
keenness and forcefulness of thought or expression or intellect	power to be effective; the quality of being able to bring about an effect