

You’re question made me think of rainbow codes, the naming scheme for British secret military projects during part of the cold war.
I couldn’t find the wordlist they used (if there ever was an official one), but if you used a system like that (with two words instead of one), then you might even get away with making your own wordlist by hand.



Technically not one book, but uhh… one/two book series: Mistborn by Brandon Sanderson.