ἵλασμα
From LSJ
Ἐς δὲ τὰ ἔσχατα νουσήματα αἱ ἔσχαται θεραπεῖαι ἐς ἀκριβείην, κράτισται → For extreme diseases, extreme methods of cure, as to restriction, are most suitable.
English (LSJ)
ατος, τό,
A propitiation, Orac. ap. Phleg.Macr.4.
German (Pape)
[Seite 1251] τό, Sühnung, Sp.