This Vest-Pocket word can be used literally to denote billowing ashes and smoke or figuratively to suggest something veiled by an obscuring and murky haze.
Fuli’ginous, a. smoky; sooty.
Word in the Wild: The plume issuing from Gunung Pinatubo struck Saraswati as being rather ominous, so she decided to review her findings in the lab rather than carry on into the crater that day. She could only hope the data would be less fuliginous than the ashes billowing from the volcano.
You can find a complete listing of the Word Blog’s Vest-Pocket Vocabulary entries and learn more about where they come from here.