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

The sky was bedarkening rapidly as the storm approached.

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

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

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

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