inumbrate

First attested in 1623; borrowed from Latin inumbrātus, perfect passive participle of inumbrō (“to shade”), see -ate (verb-forming suffix).

inumbrate (third-person singular simple present inumbrates, present participle inumbrating, simple past and past participle inumbrated)

1. (obsolete) To put in shadow; to darken.
   • 1844, Sir William Cornwallis Harris, The Highlands of Æthiopia:

     An eclipse had suddenly inumbrated the moon, and as the black shadow was perceived stealing rapidly onwards, and casting a mysterious gloom over the face of nature […]

• “inumbrate”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.