consummation
From LSJ
κάλλιστον ἐφόδιον τῷ γήρᾳ ἡ παιδεία (Aristotle, quoted by Diogenes Laertius 5.21) → the finest provision for old age is education
subs.
Conclusion: P. and V. τέλος, τό, τελευτή, ἡ.
Finishing touch: P. κολοφών, ὁ, κεφάλαιον, τό, P. and V. θριγκός, ὁ (Plat.).