V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

ZIL
       Zork Implementation Language (Infocom)


V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

ZIL
       ZFS Intent Log (ZFS)


The Free On-line Dictionary of Computing (30 December 2018):

ZIL

    Zork Implementation Language.  Language used by
   Infocom's Interactive Fiction adventure games.  Interpreted
   by the zmachine, for Unix and Amiga.

   (ftp://plains.nodak.edu/Minix/st.contrib.Infocom.tar.Z).