Extended Strong's Greek Lexicon (Abbott-Smith based)
security
Usage: ἀσφάλεια, -ας, ἡ (ἀσφαλής), [in LXX for בָּטַח, etc. ;] __1. firmness. __2. certainty: Luk.1:4. __3. security: Act.5:23, 1Th.5:3. (In π. it is used as a law-term, proof, security; see MM, see word; M, Th., l.with)† (AS)