סְגֻלָּה

From LSJ

κακῶν ἀπέστω θάνατος, ὡς ἴδῃ κακά → of all evils let only death be absent, so he may see evils

Source

English (Strong)

feminine passive participle of an unused root meaning to shut up; wealth (as closely shut up): jewel, peculiar (treasure), proper good, special.