[ULPIANUS libro sexto ad edictum praetoris. ] §47.15.1.prPraeuaricator est quasi uaricator, qui diuersam partem adiuuat prodita causa sua.
[ULPIAN, in the sixth book on the edict of the praetor.] A prevaricator is, as it were, a straddler, who, having betrayed his own case, helps the opposing party.
quod nomen Labeo a uaria certatione tractum ait: nam qui praeuaricatur, ex utraque parte constitit, quin immo ex altera.
Labeo says that this name is derived from "varied contest"; for he who prevaricates stands on both sides, or rather on the other side.
§47.15.1.1Is autem praeuaricator proprie dicitur, qui publico iudicio accusauerit: ceterum aduocatus non proprie praeuaricator dicitur.
But he is properly called a prevaricator who has prosecuted in a public trial; on the other hand, an advocate is not properly called a prevaricator.
quid ergo de eo fiet? siue priuato iudicio siue publico praeuaricatus sit, hoc est prodiderit causam, hic extra ordinem solet puniri.
What, then, will become of him? If, whether in a private or a public trial, he has prevaricated, that is, has betrayed the case, he is usually punished extraordinarily.