3 Verbs to Use for the Word obscure

" The prisoner looked bewildered, for the failing of nature rendered that obscure which was once so evident to his mind.

He did not explain the obscure by the more obscure, but the difficult by the plain, the complex by the simple.

He stammered out an obscure and half- intelligible explanation, and proposed to attend the meeting in person, in order that he might be in the way of understanding the subject, without falling into the danger of mistake.

3 Verbs to Use for the Word  obscure