The Collaborative International Dictionary of English v.0.48:
Retrovert \Re"tro*vert\, v. t. [imp. & p. p. Retroverted; p. pr. & vb. n. Retroverting.] [Pref. retro- + L. vertere, versum, to turn. Cf. Retrorse.] To turn back. [1913 Webster]WordNet (r) 3.0 (2006):
retrovert v 1: go back to a previous state; "We reverted to the old rules" [syn: revert, return, retrovert, regress, turn back]