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

ETC
       European Test Conference (VDE, IEEE-CS, conference)


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

ExTendible Compiler
ETC

    (ETC) A Fortran-like compiler that can be
   extended with macros.

   ["ETC - An Extendible Macro-Based Compiler", B.N. Dickman,
   Proc SJCC 38 1971].

   (2010-01-28)