word has nine letters, and remains a word at each step even
when you remove one letter from it, up to a single letter
List each letter as you remove them, along with the
resulting word at each step.
Begin by removing
which makes it ‘starling’, then take away the
‘l’, making it ‘staring’,
now remove the 'a', making it string; ...and so on :
sing; sin; in; and, I.