G0332–ἀναθεματίζω–anathematizō

But he broke out into curses and oaths, declaring, "I know nothing of the man you are talking about."

ἀναθεματίζειν anathematizein “to curse”

Now, when daylight came, the Jews formed a conspiracy and solemnly swore not to eat or drink till they had killed Paul.

ἀνεθεμάτισαν anethematisan “put under an oath”

They went to the High Priests and Elders and said to them, "We have bound ourselves under a heavy curse to take no food till we have killed Paul.

ἀνεθεματίσαμεν anethematisamen “we have bound”

I beg you not to comply; for more than forty men among them are lying in wait for him, who have solemnly vowed that they will neither eat nor drink till they have assassinated him; and even now they are ready, in anticipation of receiving that promise of

ἀνεθεμάτισαν anethematisan “was put under an oath”