This root form (lemma) is used in 2 different forms in the NT: Ἰούστου (GMS), Ἰοῦστος (NMS).
It is glossed in 1 way: ‘Youstos’.
OET ACTS 1:23 Greek word=Ἰοῦστος (Youstos) Morphology=NMS English gloss=‘Youstos’ SR GNT ACTS 1:23 word 12
OET ACTS 18:7 Greek word=Ἰούστου (Youstou) Morphology=GMS English gloss=‘Youstos’ SR GNT ACTS 18:7 word 18
OET COL 4:11 Greek word=Ἰοῦστος (Youstos) Morphology=NMS English gloss=‘Youstos’ SR GNT COL 4:11 word 5