This root form (lemma) is used in 3 different forms in the NT: ἑσπέρα (NFS), ἑσπέραν (AFS), ἑσπέρας (GFS).
It is glossed in 1 way: ‘evening’.
OET LUKE 24:29 Greek word=ἑσπέραν (hesperan) Morphology=AFS English gloss=‘evening’ SR GNT LUKE 24:29 word 10
OET ACTS 4:3 Greek word=ἑσπέρα (hespera) Morphology=NFS English gloss=‘evening’ SR GNT ACTS 4:3 word 18
OET ACTS 28:23 Greek word=ἑσπέρας (hesperas) Morphology=GFS English gloss=‘evening’ SR GNT ACTS 28:23 word 42