ὁρκοῦν

From LSJ

τίς δ' οἶδεν εἰ τὸ ζῆν μέν ἐστι κατθανεῖν, τὸ κατθανεῖν δὲ ζῆν κάτω νομίζεται → who knows if life is death, and if in the underworld death is considered life

Source

Greek > English (Woodhouse Verbs Reversed)

(see also: ὁρκόω) bind, bind by an oath, bind by oath, swear in

Lexicon Thucydideum

iureiurando obstringere, to bind by an oath, 4.74.2, 8.75.2.