Abbott-Smith Manual Greek Lexicon
ἄστοργος (G794)
2 * ἄστοργος , -ον ( στοργή , family affection , love of kindred , v.s. ἀγάπη ), without natural affection : Ro 1:31 , II Ti 3:3 (MM, s.v.).†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain