tergiversate
To evade, to equivocate using subterfuge; to obfuscate in a deliberate manner.
intransitive
The officials soon concluded that the easiest way to remain on good terms with the court was to elude responsibility, to tergiversate, to prevent results.
To change sides or affiliation; to apostatize.
intransitive
Henry had hesitated before authorising the spoliation; he would soon tergiversate on other matters of doctrine but this act was irreversible.
To flee by turning one's back.
intransitive, rare
Where it comes from
Borrowed from Latin tergiversātus, perfect active participle of tergiversor (“to evade, to avoid, to turn one's back on”) (see -ate (verb-forming suffix)), from tergum (“back, hind”) + versor (“to turn”). Compare French tergiverser.
Adapted from the Wiktionary entry tergiversate (CC BY-SA 4.0).