confuse
Contents
English Expression
  1. n.:  mix up,  bugger up,  goof up,  mess up,  muddle up [together],  make printer's pie of
  2. v.:  jumble
  3. vt.:  confuse,  discombobulate,  discomfit,  embrangle,  obfuscate,  snarl
Thesaurus
cause Regime impracticableness, break, make a machine or system unable to operate