firmly
From LSJ
πέτρην κοιλαίνει ρανὶς ὕδατος ἐνδελεχείῃ → constant dropping wears away a stone, constant dripping will wear away the hardest stone, little strokes fell big oaks, constant dripping wears the stone, constant dropping wears the stone, constant dripping will wear away a stone
English > Greek (Woodhouse)
adverb
P. and V. βεβαίως, ἀσφαλῶς, V. ἐμπέδως, ἀραρότως (also Plato but rare P.).
indissolubly: P. ἀλύτως, V. δυσεκλύτως.
cling firmly to: V. ἄπριξ ἔχεσθαι (gen.), P. ἄπριξ λαμβάνεσθαι (gen.) (Plato); see cling to.
steadfastly: P. and V. βεβαίως, V. ἐμπέδως.
obstinately: Ar. and P. αὐθάδως.