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P.SS.

American  
Or p.ss.

abbreviation

  1. postscripts.


PSS British  

abbreviation

  1. postscripts

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of P.SS.

From the Latin word postscrīpta