fiercely
From LSJ
ταῦτα δηλώσω αὐτός τε νοσήσας καὶ αὐτὸς ἰδὼν ἄλλους πάσχοντας → I shall describe those symptoms, since I myself had the disease and witnessed as well what others were suffering
ταῦτα δηλώσω αὐτός τε νοσήσας καὶ αὐτὸς ἰδὼν ἄλλους πάσχοντας → I shall describe those symptoms, since I myself had the disease and witnessed as well what others were suffering
P. and V. πικρῶς, P. ὠμῶς, σκληρῶς, σχετλίως, Ar. and P. χαλεπῶς.
pitilessly: P. ἀπαραιτήτως, V. νηλεῶς.
with might and main: P. κατὰ κράτος.