This root form (lemma) is used in 2 different forms in the NT: ἵλεως (NMS), ἵλεώς (NMS).
It is glossed in 2 different ways: ‘merciful’, ‘merciful be’.
OET MAT 16:22 Greek word=ἵλεώς (hileōs) Morphology=NMS English gloss=‘merciful be’ SR GNT MAT 16:22 word 16
OET HEB 8:12 Greek word=ἵλεως (hileōs) Morphology=NMS English gloss=‘merciful’ SR GNT HEB 8:12 word 2