backslide
cock
fall
fall again into
fall astern
fall back
fall behind
fall from grace
get behind
go backwards
go behind
have a relapse
jerk back
lapse
lapse back
lose ground
pull back
recede
recur to
regress
relapse
retrocede
retroflex
retrograde
retrogress
retrovert
return
return to
reverse
revert
revert to
sink back
slide back
slip back
yield again to
turn back
recidivism