to change repeatedly one's attitude or opinions with respect to a cause, subject, etc.; equivocate.
2.
to turn renegade.
Origin: 1645–55; < L tergiversātus (ptp. of tergiversārī to turn one's back), equiv. to tergi- (comb. form of tergum back) + versātus, ptp. of versāre, freq. of vertere to turn; see -ate1
[tur-ji-ver-seyt] 
