safeguard, defence; defence against
Ancient Greek word, found 13 times in the texts on Socratos.
Homer, Iliad 5.644: οὐδέ τί σε Τρώεσσιν ὀΐομαι ἄλκαρ ἔσεσθαι
Apollonius Rhodius, Argonautica 2.1074: δώματος ἀγλαΐην τε καὶ ὑετοῦ ἔμμεναι ἄλκαρ,