κάλλιστον ἐφόδιον τῷ γήρᾳ ἡ παιδεία (Aristotle, quoted by Diogenes Laertius 5.21) → the finest provision for old age is education
hollow out: P. κοιλαίνειν.
dig: P. and V. ὀρύσσειν, σκάπτειν, Ar. and P. διορύσσειν.
