irrevocably
From LSJ
Λύπης ἰατρός ἐστιν ἀνθρώποις λόγος – For men reason is a healer of grief – Für Menschen ist der Trauer Arzt allein das Wort – Maeroris unica medicina oratio.
adv.
P. and V. βεβαίως, ἀσφαλῶς, V. ἀραρότως (also Plat. but rare P.), V. ἐμπέδως.