Lexical Definition

‎ἀσφάλεια‎ aspháleia (as-fal'-i-ah) security ^G:N-F
from ‎ἀσφαλής‎

certainty, safety.

• security (literally or figuratively)

Abbott-Smith

ἀσφάλεια, -ας, ἡ (< ἀσφαλής), [in LXX for בֶּטַח, etc.;]
1. firmness.
2. certainty: Lk 1:4.
3. security: Ac 5:23, I Th 5:3. (In π. it is used as a law-term, proof, security; v. MM, s.v.; M, I Th 5:3.)†

Abbott-Smith References

Liddell-Scott-Jones

ἀσφάλεια-εια [φᾰ],

genitive ας, Ionic dialect ης, ἡ, (ἀσφᾰλής) security against stumbling or falling, ἀ. πρὸς τὸν πηλόν[Refs 5th c.BC+]; steadfastness, stability, ἀσφαλείᾳ.. ἀνόρθωσον πόλιν raise up the city so that it stand fast, [Refs 5th c.BC+]

__2 assurance from danger, personal safety, [Refs 5th c.BC+]; ἀ. τῆς ἐπαναφορᾶς precaution regarding it, [Refs 5th c.BC+]; ἡ ἰδία ἀ., opposed to ὁ τῆς πόλεως κίνδυνος, [Refs 5th c.BC+]safe-conduct, [Refs 5th c.BC+]; ἀ. διδόναι, παρέχειν, [Refs 5th c.BC+]; τὸ σῶμ᾽ ἐν ἀσφαλείᾳ καθιστάναι, καθεστάναι, [Refs 5th c.BC+]; κατ᾽ ἀσφάλειαειαν in safety, [ἀσφάλειαειαι ">Refs 5th c.BC+]seasons of safety, [Refs 5th c.BC+]
__3 caution, σῴζονται ὑπ᾽ ἀσφαλείας[Refs 1st c.AD+]: in Lit. Crit., circumspection, [Refs 4th c.BC+]
__4 assurance, certainty, ἀ. πολλὴ μὴ ἂν ἐλθεῖν αὐτούς[Refs 5th c.BC+]; ἀ. ἐργάζεσθαι τὴν γῆν security for agriculture, [Refs 5th c.BC+]
__5 ἀ. λόγου convincing nature, certainty of an argument, [NT]
__6 as law-term, security, bond, [Refs 2nd c.AD+]; pledge, [Refs 1st c.BC+]: in plural, = Latin cautiones, [Refs 6th c.AD+]
__7 [Refs 4th c.BC+] name for eight, [Refs]

_{LSJ Scripture Refs: Luke.1.4}