trenchancy vs effectualness

trenchancy and effectualness both are nouns.

Word	Noun	Adjective	Verb	Adverb
trenchancy	Yes	No	No	No
effectualness	Yes	No	No	No

As nouns, effectualness is a hypernym of trenchancy; that is, effectualness is a word with a broader meaning than trenchancy:

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

Other hypernyms of trenchancy include effectiveness, effectivity, effectuality.

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