Dear Maurice: a spelling bee word "tergiversation" reminded me of your "retranca"
tergiversate
vi.
L tergiversatus, pp. of tergiversari, to turn one‘s back, decline, shift < tergum, the back (see fol.) + versari, to turn: see VERSE6
1 to desert a cause, party, etc.; become a renegade; apostatize
2 to use evasions or subterfuge; equivocate
ter#gi[ver[sa4tion
n.
ter4gi[ver[sa#tor
n.