This root form (lemma) is used in 2 different forms in the NT: κολυμβήθρα (NFS), κολυμβήθραν (AFS).
It is glossed in 2 different ways: ‘a pool’, ‘pool’.
OET JOHN 5:2 Greek word=κολυμβήθρα (kolumbaʸthra) Morphology=NFS English gloss=‘a pool’ SR GNT JOHN 5:2 word 10
OET JOHN 5:7 Greek word=κολυμβήθραν (kolumbaʸthran) Morphology=AFS English gloss=‘pool’ SR GNT JOHN 5:7 word 22
OET JOHN 9:7 Greek word=κολυμβήθραν (kolumbaʸthran) Morphology=AFS English gloss=‘pool’ SR GNT JOHN 9:7 word 8