post ‧ script /ˈpəʊsˌskrɪpt $ ˈpoʊs-/ BrE AmE noun [countable] ( written abbreviation PS )
[ Date: 1500-1600 ; Language: Modern Latin ; Origin: postscriptum , from Latin postscribere 'to write after' ]
1 . a message written at the end of a letter after you have signed your name
2 . extra details or information that you add after a story or an account
postscript to
There’s an interesting postscript to this tale.