Abbott-Smith Manual Greek Lexicon
παιδεία (G3809)
6 παιδεία ( -ία , T), -ας, ἡ ( παιδεύω ), [in LXX chiefly for מוּסָר ;] the rearing of a child (Æsch.). training , learning , instruction (Plat., al.): Eph 6:4 , II Ti 3:16 . As in LXX ( Pr 3:11 15:5 , al.), chastening , discipline : He 12:5 (LXX) , 7 , 8 , 11 .†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain