ἐπιμαρτύρεσθαι

From LSJ

Στέργει γὰρ οὐδεὶς ἄγγελον κακῶν ἐπῶν → No one loves the bearer of bad news

Sophocles, Antigone, 277

Greek > English (Woodhouse Verbs Reversed)

(see also ἐπιμαρτύρομαι): conjure, invoke, call in as witness, call on as witness, call on, call to witness, call upon

Lexicon Thucydideum

obtestari, to beseech, 6.29.2 (de Alcibiade concerning Alcibides).