This root form (lemma) is used in 2 different forms in the NT: κεφάλαιον (NNS), κεφαλαίου (GNS).
It is glossed in 2 different ways: ‘the point’, ‘sum’.
OET ACTS 22:28 Greek word=κεφαλαίου (kefalaiou) Morphology=GNS English gloss=‘sum’ SR GNT ACTS 22:28 word 14
OET HEB 8:1 Greek word=κεφάλαιον (kefalaion) Morphology=NNS English gloss=‘the point’ SR GNT HEB 8:1 word 1