Postscript

• POS: Noun
• HYPHEN: post=script

CIDE DICTIONARY

Postscript, n. [L. postscriptus, (assumed) p. p. of postscribere to write after; post after + scribere to write: cf. F. postscriptum. See Post-, and Scribe.].

 A paragraph added to a letter after it is concluded and signed by the writer; an addition made to a book or composition after the main body of the work has been finished, containing something omitted, or something new occurring to the writer.  [1913 Webster]

OXFORD DICTIONARY

Postscript, n.
1 an additional paragraph or remark, usu. at the end of a letter after the signature and introduced by 'PS'.
2 any additional information, action, etc.

Etymology

L postscriptum neut. past part. of postscribere (as POST-, scribere write)

THESAURUS

Postscript

PS, Parthian shot, addendum, affix, afterthought, allonge, appendix, back matter, chorus, coda, codicil, colophon, commentary, conclusion, consequence, continuance, continuation, double take, dying words, enclitic, envoi, epilogue, follow-through, follow-up, infix, interlineation, interpolation, last words, marginalia, note, parting shot, peroration, postface, postfix, postlude, prefix, proclitic, refrain, rider, scholia, second thought, sequel, sequela, sequelae, sequelant, sequent, sequitur, subscript, suffix, supplement, swan song, tag, tail

ROGET THESAURUS

Postscript

Sequel

N sequel, suffix, successor, tail, queue, train, wake, trail, rear, retinue, suite, appendix, postscript, epilogue, peroration, codicil, continuation, sequela, appendage, tail piece, heelpiece, tag, more last words, colophon, aftercome, aftergrowth, afterpart, afterpiece, aftercourse, afterthought, aftergame, arriere pensee, second thoughts, outgrowth.