This root form (lemma) is used in 2 different forms in the NT: διετίαν (AFS), διετίας (GFS).
It is glossed in 1 way: ‘two_years’.
OET ACTS 24:27 Greek word=διετίας (dietias) Morphology=GFS English gloss=‘two_years’ SR GNT ACTS 24:27 word 1
OET ACTS 28:30 Greek word=διετίαν (dietian) Morphology=AFS English gloss=‘two_years’ SR GNT ACTS 28:30 word 7