δικαιολογία
From LSJ
κάλλιστον ἐφόδιον τῷ γήρᾳ ἡ παιδεία (Aristotle, quoted by Diogenes Laertius 5.21) → the finest provision for old age is education
English (LSJ)
ἡ,
A plea in justification, Demad.7, Arist.Rh.Al.1438a25, LXX 2 Ma.4.44, PFlor.6.13 (iii A. D.): generally, pleading, Plb.3.21.3, al. II pl.,forensic speeches, Arist.Rh.Al.1421b13, 1432b33.