derails

/D IH0 R EY1 L Z/
verb
  1. 1

    To cause to come off the tracks.

    โ€œThe train was destroyed when it was derailed by the penny.โ€

  2. 2

    To come off the tracks.

  3. 3

    To deviate from the previous course or direction.

    โ€œThe conversation derailed once James brought up politics.โ€

  4. 4

    To cause to deviate from a set course or direction; derange.

    โ€œThe protesting students derailed the professor's lecture.โ€

Synonyms

Source: https://en.wiktionary.org/wiki/derail, https://en.wiktionary.org/wiki/derails