Akademik

recant
v.
1 tr. withdraw and renounce (a former belief or statement) as erroneous or heretical.
2 intr. disavow a former opinion, esp. with a public confession of error.
Derivatives:
recantation n. recanter n.
Etymology: L recantare revoke (as RE-, cantare sing, chant)

Useful english dictionary. 2012.