gravely
From LSJ
καὶ ἐχθροὶ τοῦ ἀνθρώπου οἱ οἰκιακοὶ αὐτοῦ → and a man's foes shall be they of his own household (Micah 7:6, Matthew 10:36)
καὶ ἐχθροὶ τοῦ ἀνθρώπου οἱ οἰκιακοὶ αὐτοῦ → and a man's foes shall be they of his own household (Micah 7:6, Matthew 10:36)
of manner, etc.: P. and V. σεμνῶς.
seriously, alarmingly: P. and V. δεινῶς.
dangerously: P. and V. ἐπικινδύνως.