Strong's G5050 · Greek

τελείωσις

teleiosis · tel-i'-o-sis

from 5448; (the act) completion, i.e. (of prophecy) verification, or (of expiation) absolution

Scholarly Lexicons

Abbott-Smith Manual Greek Lexicon

 2 τελείωσις , -εως, ἡ ( τελειόω ), [in LXX chiefly for מִלֻּא , Ex 29:22 , al. ;] fulfilment, completion, perfection: Lk 1:45 , He 7:11 .† 

G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain