Which is correct?
I will transfer the amount on tomorrow.
I will transfer the amount by tomorrow.
What's the difference between morrow and tomorrow?
Why are there two similar words for the same meaning?
I noticed it in the title of a song of michael nyman, second morrow, on gattaca ost.
There may have been one, or more, and there may still be dialectal variants around here and there.
But there's no general word;
Instead there's a fixed phrase, which you used:
The day after tomorrow.