This root form (lemma) is used in 3 different forms in the NT: ἀφροσύνη (NFS), ἀφροσύνης (GFS), ἀφροσύνῃ (DFS).
It is glossed in 2 different ways: ‘of foolishness’, ‘foolishness’.
OET MARK 7:22 Greek word=ἀφροσύνη (afrosunaʸ) Morphology=NFS English gloss=‘foolishness’ SR GNT MARK 7:22 word 15
OET 2COR 11:1 Greek word=ἀφροσύνης (afrosunaʸs) Morphology=GFS English gloss=‘of foolishness’ SR GNT 2COR 11:1 word 8
OET 2COR 11:17 Greek word=ἀφροσύνῃ (afrosunaʸ) Morphology=DFS English gloss=‘foolishness’ SR GNT 2COR 11:17 word 11
OET 2COR 11:21 Greek word=ἀφροσύνῃ (afrosunaʸ) Morphology=DFS English gloss=‘foolishness’ SR GNT 2COR 11:21 word 16