tenebrize

verb2

1. •
   (rare) To make dark and shadowy.

   • The overall atmosphere is not merely murky but tenebrized and quite literally night-soaked. — 2006
2. •
   (no longer used, rare) To dwell in darkness.

   • We spend too many of these precious clinic hours in blind stupor, tenebrizing it like polar bears in winter. — 2011