This root form (lemma) is used in 2 different forms in the NT: ἀγοραίων (GMP), ἀγοραῖοι (NMP).
It is glossed in 2 different ways: ‘courts’, ‘marketplaces’.
OET ACTS 17:5 Greek word=ἀγοραίων (agoraiōn) Morphology=GMP English gloss=‘marketplaces’ SR GNT ACTS 17:5 word 14
OET ACTS 19:38 Greek word=ἀγοραῖοι (agoraioi) Morphology=NMP English gloss=‘courts’ SR GNT ACTS 19:38 word 19