I know that 'forever' is a word, and I know that 'evermore' is a word, but what is the correct way to write the phrase 'for ever more'? Is it 'forever more'? 'For evermore'? Or even 'forevermore', as a long shot? Any help would be appreciated!
The OED has both flavors:
I myself would do the second; it goes with Poe’s nevermore.
Are you sure you need the for part? Might evermore alone suffice?
Edgar Allen Poe also used 'for evermore', famously in The Raven.
And while I'm here... NEVERMORE. ;)