Pōst'script, n.

n. [From Lat. post, after, and scriptum, written, p. p. of scribere, to write; postscribere, to write after, to add in writing; Fr. postscriptum, poscrit, It. postscritto, poscritto, postscripta, postscritta, poscritta.] A paragraph added to a letter after it is concluded and signed by the writer; or any addition made to a book or composition after it had been supposed to be finished, containing something omitted, or something new occurring to the writer.