back·track 
/ˈbækˌtræk/ verb
back·tracks; back·tracked; back·track·ing /ˈbækˌtræk/ verb [no obj] 1 : to go back over a course or path
▪ The hikers realized they had made a wrong turn and would have to backtrack. 2 : to return to something that was mentioned before
▪ Let me backtrack for a moment and pick up our previous conversation. 3 : to completely change what you think or say about something
▪ Voters lost confidence in him when he backtracked on the issues. [=when he reversed his position on the issues]
▪ The hikers realized they had made a wrong turn and would have to backtrack.
▪ Let me backtrack for a moment and pick up our previous conversation.
▪ Voters lost confidence in him when he backtracked on the issues. [=when he reversed his position on the issues]
