soberly
From LSJ
ἐν ὀνόματι τῆς ἁγίας καὶ ὁμοουσίου καὶ ἀδιαιρέτου Τριάδος → in the name of the Holy and Consubstantial and Indivisible Trinity
ἐν ὀνόματι τῆς ἁγίας καὶ ὁμοουσίου καὶ ἀδιαιρέτου Τριάδος → in the name of the Holy and Consubstantial and Indivisible Trinity
discreetly: P. and V. σωφρόνως, V. σεσωφρονισμένως.
calmly: P. and V. ἡσυχῆ, ἡσύχως (rare P.).
in an orderly manner: P. and V. εὐτάκτως.