Back in the 1960s I read a science fiction book or story, probably by a prominent British science fiction writer like Brian W. Aldiss, where in the distant future the planet Earth had a ring.
This ring was composed of rubble from the Moon, which had exploded. The Moon had been used as graveyard of abandoned spaces ships, and one of them "embedded in ira on the Moon", had exploded, destroying the Moon.
If the word "ira" was all lower case, ira would be some sort of condition or state, or maybe some type of material used to contain the spaceship, but I don't know of any word ira.
If "Ira" was capitalized, it would have been a proper noun, the name of a place on the Moon. And I am not familiar with any place name of Ira on the Moon.
This list of lunar features lists every example of each type of lunar feature in alphabetical order. And there is no Ira on it.
So what story or novel am I thinking of, and what does "embedded in ira" mean?
In the English language "ire" is defined as strong anger:
The bells were ringing in the Dale
The Men looked up with faces pale.
The dragon's ire, more fierce than fire,
laid low their towers and houses frail."
In Latin ira or irae means anger or fury.