confuse (EN)
verb

verb “confuse”

confuse; he confuses; past confused, part. confused; ger. confusing
  1. to make someone feel puzzled or unable to understand
    The new math problem confused the entire class until the teacher explained it step by step.
  2. to mistake (one thing for another)
    She confused the sugar with salt and ruined the cake.
  3. to make (a subject) harder to understand
    The additional information in the report confused the issue instead of clarifying it.