παρορκέω
From LSJ
ἐν μὲν γὰρ ταῖς ἐπιστολαῖς αὐτοῦ οὐδὲ μνήμην τῆς οἰκείας προσηγορίας ποιεῖται, ἢ πρεσβύτερον ἑαυτὸν ὀνομάζει, οὐδαμοῦ δὲ ἀπόστολον οὐδ' εὐαγγελιστήν (Eusebius, Demonstratio evangelica 3.5.88) → For in his epistles he doesn't even make mention of his own name — or simply calls himself the elder, but nowhere apostle or evangelist.
English (LSJ)
forswear oneself, Philostr.VA5.35, App.Gall. 19.
German (Pape)
[Seite 527] eidbrüchig, meineidig sein, werden, Sp., wie Schol. Il. 3, 279; Philostr.
Greek (Liddell-Scott)
παρορκέω: ἐπιορκῶ, γίνομαι ἐπίορκος, Φιλόστρ. 219, Ἀππ. παρὰ Σουΐδ.