The one I REALLY wanted to tell you, Nevan already got it, good going Nevan it's truly a delightful word...
I just learned THRENODY three days ago, because of WelbyQuentin, he posted an exquisitely haunting composition from the Polish composer, Krzysztof Penderecki...a lament (threnody) for victims of Hiroshima.
* * * Not perfect rhymes, but you could also try Yosemite, calamity, tragedy.