WordNet (r) 3.0 (2006):

paisley
    n 1: a soft wool fabric with a colorful swirled pattern of
         curved shapes

The Free On-line Dictionary of Computing (19 January 2023):

PAISley

   An operational specification language from Bell Labs.

   ["An Operational Approach to Requirements Specification for
   Embedded Systems", P. Zave, IEEE Trans Soft Eng
   SE-8(3):250-269 (May 1982)].

   (1995-01-30)