sidetrack >> ˈsʌɪdtrak
Definition: [verb] cause (someone) to be distracted from an immediate or important issue.
Example: he does not let himself get sidetracked by fads and trends
Definition: [verb] direct (a train) into a branch line or siding.
Example: the train is sidetracked on to a line leading to a terminal
Definition: [noun] a minor path or track.
Example: the horse took a sidetrack which led uphill