Ἅγιος ὁ Θεός, Ἅγιος ἰσχυρός, Ἅγιος ἀθάνατος, ἐλέησον ἡμᾶς → holy God, holy Mighty, holy Immortal, have mercy on us
trepidans trepidantis (gen.), trepidantior -or -us, trepidantissimus -a -um ADJ :: trembling, anxious; panicking