Originally Posted by Literature
Here was the situation because I know there are some grammar-minded people here.
"His father, the sun god Helios, used the sun as his chariot."
My suggestion: hyphenate "sun-god" because it is an adjective (describing Helios).
But, no, it's not an adjective. It's not describing Helios. It's identifying him, I suppose. So I guess the rule according to the Chicago Manual Style is just keep it "sun god" but perhaps in this case, put a comma after "god."
(And this has been another chapter of First World Problems).
The word "sun" is the adjective, describing the word "god".
Don't live for pleasure, make life your treasure...
\m/ Ronnie James Dio, 1942-2010 \m/