Function: intransitive verb
Date: 15th century
1 a : to go in the reverse direction b : to stop going forward
2 : to refer to an earlier time or place
transitive verb
1 : to drive back or away
2 : to stop the advance of
3 : to fold back
4 : GIVE BACK , RETURN
– turn back the clock : to revert to or remind of a condition existing in the past