unscramble -
make intelligible; "Can you unscramble the message?"
scramble make unintelligible; "scramble the message so that nobody can understand it"
modify,
alter,
change make less severe or harsh or extreme; "please modify this letter to make it more polite"; "he modified his views on same-gender marriage"
unscramble -
become or cause to become undone by separating the fibers or threads of; "unravel the thread"
