ἀμφισβητεῖται
From LSJ
Ἅγιος ὁ Θεός, Ἅγιος ἰσχυρός, Ἅγιος ἀθάνατος, ἐλέησον ἡμᾶς → holy God, holy Mighty, holy Immortal, have mercy on us
Greek > English (Woodhouse Verbs Reversed)
(see also: ἀμφισβητέω) it is a disputed point, it is an open question
