Make a new word by changing, adding or subtracting a letter, without altering the letter order (the new letter doesn't have to go at the beginningor end, it can be anywhere.)
Elegran - might we be allowed to both drop a letter or letters (say max 2) in addition to adding one? I've been staring at latest excellent contribution but can't see a way of changing it by just shuffling and adding or subtracting once.). But maybe someone can still come up with something ??
I've searched internet anagram sites - one gave the only anagram of murderous as ..... murderous. It also had an option for finding words within the word (i.e. using some of the letters). Nothing for one dropped letter except some rather questionable non-words (IMO). So I think Grandma2213 takes the crown for this one
People already seem to be sometimes doing more than one move at a time, so why not? And if it is still completely impossible after a reasonable time, then a restart (using a few of the letters in the last word?) is a last resort. but give it a fair try before restarting.