ὑπανίστασθαι
From LSJ
ῥᾷον ὀμνύναι κἀπιορκεῖν ἢ ὁτιοῦν → they thought less of swearing and perjuring themselves than of anything else in the world
Greek > English (Woodhouse Verbs Reversed)
(see also: ὑπανίσταμαι) rise from one's seat in honour of a person