Possible misspelling? More dictionaries have definitions for
knack
-- could that be what you meant?
know nothing and apparently can know
Seeing that we cannot solve infinite problems, that we know nothing, and apparently can know nothing, of God or the supernatural, the Atheist has always regarded religious dogmas as blind guesses, which, according to the laws of chance, are in all probability wrong; and as these blind guesses have almost invariably been associated with mental tyranny and moral perversion, he has regarded theology as the foe of liberty and humanity. — from Flowers of Freethought (Second Series) by G. W. (George William) Foote
This tab, called Hiding in Plain Sight,
shows you passages from notable books where your word is accidentally (or perhaps deliberately?)
spelled out by the first letters of consecutive words.
Why would you care to know such a thing? It's not entirely clear to us, either, but
it's fun to explore! What's the longest hidden word you can find? Where is your name hiding?