ter·giv·er·sate 
(tər-jĭvər-sāt′, tûrjĭ-vər-)
(tər-jĭvər-sāt′, tûrjĭ-vər-)intr.v. ter·giv·er·sat·ed, ter·giv·er·sat·ing, ter·giv·er·sates
1. To use evasions or ambiguities; equivocate.
2. To change sides; apostatize.
[Latin tergiversārī, tergiversāt- : tergum, the back + versāre, to turn; see wer-2 in the Appendix of Indo-European roots.]
ter′gi·ver·sation n.
tergi·ver·sa′tor (-sā′tər) n.