The heavy curtains would bedark the parlor at dusk, shutting out the last of the light.

As the theater lights dim, the stage manager bedarkens the set to create a more ominous mood.

The sky was bedarkening rapidly as the storm approached.

Late afternoon fog began to bedarken the harbor, cloaking the ships in a slow, grey hush.

As the storm approached, the sky bedarkened and the beach emptied.

The bedarkened corridors of the abandoned hospital echoed with distant footsteps.