Lexical Definition

‎λάθρα‎ láthra (lath'-rah) quietly G:ADV
adverb from ‎λανθάνω‎

privily, secretly.

Usage: 2 forms in 11 verses
Form Translated As     In Verse(s)
λάθρᾳ secretly Matt.1.19 • Matt.2.7 • John.11.28 • Acts.16.37
λάθρα in private LXX.Deut.13.6 • LXX.1Sam.18.22 • LXX.1Sam.26.5 • LXX.Job.31.27 • LXX.Ps.101.5 • LXX.Hab.3.14
poor LXX.Hab.3.14

Abbott-Smith

λάθρᾳ (Att.; in Hom., -ρῃ, Rec. -ρα), adv., [in LXX chiefly for ‎בַּסֵּתֶר;]
secretly: Mt 1:19 2:7, Mk 5:33 (WH, mg.), Jo 11:28, Ac 16:37.†

Abbott-Smith References

Book Refs
Matthew 1:19 · 2:7
Mark 5:33
John 11:28
Acts 16:37

Liddell-Scott-Jones

λάθρα· αἱ δίκαι

(from Elean), [Refs 5th c.AD+] λάθρα, λάθρᾳ, see at {λάθρῃ}.