This root form (lemma) is used in 2 different forms in the NT: ποίημα (NNS), ποιήμασιν (DNP).
It is glossed in 2 different ways: ‘the workmanship’, ‘workmanship’.
OET ROM 1:20 Greek word=ποιήμασιν (poiaʸmasin) Morphology=DNP English gloss=‘workmanship’ SR GNT ROM 1:20 word 9
OET EPH 2:10 Greek word=ποίημα (poiaʸma) Morphology=NNS English gloss=‘the workmanship’ SR GNT EPH 2:10 word 5