Jumentous sounds like it’s a combination of the words joy and momentous – like the feeling you get when you find out you’re about to receive a 50% pay raise.
But it’s not.
It means “relating to, or smelling like horse urine.”
The word itself is not too offputting, but why does it have to be so specific about its equine source?
Want to read more about other uncommon words? 🙂 See the Interesting Words page.
– Wiktionary (English)