To obscure or darken, making it difficult to see or perceive clearly.

To envelop with social, intellectual, or moral darkness; to benight.

To benight means to cause darkness to fall, to obscure with night, or to envelop in darkness.

Lacking knowledge, enlightenment, or culture; in a state of darkness or ignorance.

Being overtaken by night or darkness; lacking knowledge or enlightenment; in a state of ignorance or obscurity.