Answer: PSS
AnswerCrossword Clue
PSSFollowers of closings: Abbr.
PSSLetter addenda.
PSSEpistolary Latin abbreviation.
PSSItems on letters.
PSSLetter writer's addenda: Abbr.
PSSNote addendum.
PSSWritten additions, for short.
PSSAfterthoughts
PSSLetters after letters
PSSPostscripts: Abbr.
PSSAdditions to ltrs.
PSSNotes added to notes: Abbr.
PSSSupplementary words in a letter
PSSLetter endings: Abbr.
PSSThey follow signatures
PSSThey're not part of the body: Abbr.
PSSQuick addenda
PSSThey go below signatures, for short
PSSAdd-ons: Abbr.
PSSSome scribbles, for short
PSSLetter writer's afterthoughts
PSSSupp. writings
PSSThey follow closings: Abbr.
PSSCertain addenda: Abbr.
PSSLetter add-ons, for short
PSSBrief letter additions
PSSSome afterthoughts, in brief
PSSThey come after signatures in snail mail
PSSLetter afterthoughts letters
PSSTire leak sound
PSSLetter closers?
PSSLtr. initials
PSSLetter additions briefly
PSSLetter addition letters
PSSAdd-ons to ltrs.
PSSLetter add-ons
PSSAddenda in an env.
PSSAdd-ons: abbr.
PSSLtrs.' appendages
PSSLetter-writer's afterthoughts