Dep.
1.to call to witness, appeal to, τοὺς θεούς Xen.:—also, to call a person as one's witness, Lat. antestari, Ar.
2.to call on earnestly, to conjure, Lat. obtestari, Hdt.; ἐπιμ. τινα μὴ ποιεῖν τι to call on one not to do, id=Hdt.
3.to affirm or declare before witnesses that . . , Dem.