Lexical Definition

‎βεβαίωσις‎ bebaíōsis (beb-ah'-yo-sis) confirmation ^G:N-F
from ‎βεβαιόω‎

confirmation.

• stabiliment

Abbott-Smith

βεβαίωσις, -εως, ἡ (< βεβαιόω, q.v.), [in LXX: Le 25:23 (צְמִיתֻת), Wi 6:19*;]
confirmation: τ. εὐαγγελίου, Phl 1:7; εἰς β., He 6:16, a phrase freq. in π. of guarantee in a business transaction (Deiss., BS, 104 ff.; Cremer, 140).†

Abbott-Smith References

Liddell-Scott-Jones

βεβαίωσις-ωσις, εως, ἡ,

confirmation, β. γνώμης [Refs 5th c.BC+]; εἰς β. in perpetuity, ἡ γῆ οὐ πραθήσεται εἰς β. [LXX]

__2 legal warranty, [Refs 4th c.BC+]; βεβαιώσεως δίκη [Refs 2nd c.AD+]

_{LSJ Scripture Refs: LXX.Lev.25.23}