Here are the steps to improve readability:
1. Add punctuation and capitalization:
Early Greek had hardly any punctuation.
Fonoitceridehtdegnahcnevedna*
Their writing at the end of each line later
Tahtgnitirwofawayotdegnahoyeht*
That favored right-handed people and showed
Where a new paragraph began by und
2. Separate words:
Early Greek had hardly any punctuation.
Fono it ceri deht degna hcn ev edna*
Their writing at the end of each line later
Taht gnitir wof ayo tdegna hoy eht