RETROGRESS
relapse, lapse, recidivate, regress, retrogress, fall back
(verb) go back to bad behavior; “Those who recidivate are often minor criminals”
regress, retrograde, retrogress
(verb) get worse or fall back to a previous condition
Source: WordNet® 3.1
Etymology
Verb
retrogress (third-person singular simple present retrogresses, present participle retrogressing, simple past and past participle retrogressed)
(intransitive) To return to an earlier, simpler or worse condition; to regress.
(intransitive) To go backwards; to retreat.
(intransitive) To return to bad behaviour; to relapse.
Antonyms
• progress
Noun
retrogress (plural retrogresses)
A retrogression.
Source: Wiktionary
Re"tro*gress, n. Etym: [Cf. L. retrogressus.]
Definition: Retrogression. [R.] H. Spenser.
Source: Webster’s Unabridged Dictionary 1913 Edition