ὁρκοῦν

From LSJ

διὰ λαμπροτάτου βαίνοντες ἁβρῶς αἰθέρος → passing lightly through clear-shining air (Euripides, Medea 829)

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.