ἔλπος
From LSJ
ἄλογον δὴ τὸ μήτε μάχης ἄρξασθαι μήτε τοὺς φίλους φυλάξαι, ἐὰν ὑπό γε τῶν βαρβάρων ἀδικῆσθε → It is irrational neither to begin battle nor to guard the friends, if you are ever wronged by the foreigners
English (LSJ)
ἔλαιον, στέαρ, εὐθηνία, Hsch.; cf. ἔλφος. (Cf. Skt.
A sarpi[snull ] 'melted butter', OHG. salba.) ἐλπτέοντες· ἐλπίζοντες, Id.