ἀδελφοπρεπῶς
From LSJ
Sunt verba voces quibus hunc lenire dolorem possis, magnam morbi deponere partem → Words will avail the wretched mind to ease and much abate the dismal black disease.
English (LSJ)
Adv. as befits a brother, LXX 4 Ma.10.12.
Spanish (DGE)
adv. como conviene a un hermano LXX 4Ma.10.12.
Greek (Liddell-Scott)
ἀδελφοπρεπῶς: ἐπίρρ., ὡς ἁρμόζει εἰς ἀδελφόν, Ἑβδ. (Μακκ. Δ΄, ι΄, 12).