Abbott-Smith Manual Greek Lexicon
διάνοια (G1271)
12 διάνοια , -ας, ἡ [in LXX chiefly for לֵב , לֵבָב ;] the understanding, mind : Lk 1:51 , Eph 4:18 , Col 1:21 , I Pe 1:13 , II Pe 3:1 , I Jo 5:20 ; pl., Eph 2:3 ; in quotations from LXX, Mt 22:37 , Mk 12:30 , Lk 10:27 , He 8:10 10:16 (Cremer, 79, 438).†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain